為了使本技術領域的人員更好地理解本發明中的技術方案，下面將結合本發明實施例中的附圖，對本發明實施例中的技術方案進行清楚、完整地描述，顯然，所描述的實施例僅僅是本發明的一部分實施例，而不是全部的實施例。基於本發明中的實施例，本領域普通技術人員在沒有作出創造性勞動前提下所獲得的所有其他實施例，都應當屬於本發明保護的範圍。
為了便於理解本發明實施例，首先在此介紹本發明實施例中貨幣兌換訂單在每個階段的訂單狀態。如圖1所示的，訂單狀態包括初始狀態、已確認狀態、已支付狀態、已配鈔狀態、已取鈔狀態、超時未取鈔狀態、申請退款狀態、已退款狀態、失敗狀態。其中，初始狀態：用戶在手機用戶端上選擇一種貨幣並下單之後，貨幣兌換系統伺服器產生貨幣兌換訂單。已確認狀態：貨幣兌換公司伺服器接收到下單請求，並確認用戶可以正常下單。已支付狀態：用戶支付貨幣兌換訂單。已配鈔狀態：貨幣兌換公司完成為用戶配鈔。已取鈔狀態：用戶到貨幣兌換公司完成取鈔。超時未取鈔狀態：用戶未在指定時間到貨幣兌換公司取鈔，且未在指定時間內申請退款。申請退款狀態：用戶在支付成功後和取鈔前申請退款。已退款狀態：貨幣兌換系統已退款給用戶。失敗狀態：貨幣兌換公司伺服器確認用戶不可以正常下單、用戶支付失敗、為用戶配鈔失敗、取鈔失敗。
下面將結合圖1所示的訂單狀態詳細介紹本發明實施例的用於貨幣兌換的方法。
圖2是根據本發明的一個實施例的用於貨幣兌換的方法的流程圖。圖2的方法由用於貨幣兌換的裝置來執行。
如圖2所示出的，在S202處，若接收到訂單狀態修改請求，則將貨幣兌換訂單的訂單狀態修改為已取鈔狀態，所述訂單狀態修改請求用以請求在用戶到達取鈔櫃檯且未取鈔時將所述貨幣兌換訂單的訂單狀態修改為已取鈔狀態。
需要說明的是，本發明實施例的方法需要事先約定以下規則：(1)貨幣兌換公司的工作人員需要在用戶到達取鈔櫃檯且未取鈔時進行訂單狀態的修改(2)貨幣兌換公司的工作人員須在貨幣兌換訂單的訂單狀態為已取鈔狀態時，才能為用戶提供取鈔服務。
可選地，在一些實施例中，在S202處，將貨幣兌換訂單的訂單狀態修改為已取鈔狀態，包括：若確定接收到訂單狀態修改請求時貨幣兌換訂單的訂單狀態為已配鈔狀態，則將貨幣兌換訂單的訂單狀態由已配鈔狀態變更為已取鈔狀態。
進一步地，在一些實施例中，若確定接收到訂單狀態修改請求時貨幣兌換訂單的訂單狀態不是已配鈔狀態，則拒絕貨幣兌換訂單的訂單狀態修改為已取鈔狀態。
也就是說，在對貨幣兌換訂單的訂單狀態進行修改時先進行前置狀態檢查，如果符合規則就對訂單狀態進行修改，否則不對訂單狀態進行修改。由此能夠確保用戶和貨幣兌換公司的資金不受損失。
舉例來說，如果在接收到訂單狀態修改請求時貨幣兌換訂單的訂單狀態為初始狀態、已確認狀態、已支付狀態、申請退款狀態、已退款狀態和失敗狀態中的一種，則不對訂單狀態進行修改，只有在接收到訂單狀態修改請求時貨幣兌換訂單的訂單狀態已配鈔狀態時，才將訂單狀態由已配鈔狀態修改為已取鈔狀態，可以避免貨幣兌換公司在未為用戶配鈔的情況下將訂單狀態修改為已取鈔狀態，導致用戶取不到鈔的情況給用戶帶來的資產損失。
或者又例如，如果在接收到訂單狀態修改請求時貨幣兌換訂單的訂單狀態為已退款狀態，則拒絕將訂單狀態修改為已取鈔狀態，即如果已退款給用戶則不允許用戶取鈔，進而將不會為用戶提供取鈔服務，能夠避免用戶退款後再取鈔給貨幣兌換公司帶來的資產損失。
在S204處，向貨幣兌換系統伺服器發送第一通知資訊，所述第一通知資訊用以通知所述貨幣兌換伺服器所述貨幣兌換訂單的訂單狀態為已取鈔狀態，所述貨幣兌換系統伺服器用以在所述貨幣兌換訂單的訂單狀態為已取鈔狀態時拒絕用戶端發送的申請退款請求。
也就是說，在S204處，如果訂單狀態已被修改為已取鈔狀態，則將這個狀態同步到貨幣兌換系統伺服器。之後如果貨幣兌換系統伺服器接收到用戶端發送的申請退款請求，貨幣兌換系統伺服器將拒絕申請退款請求。由此能夠避免用戶取鈔的同時申請退款給貨幣兌換公司帶來的資產損失。
在本發明實施例中，可選地，圖2所示的方法還包括：若在接收到貨幣兌換系統伺服器發送的申請退款請求時，貨幣兌換訂單的訂單狀態為已取鈔狀態，則確定拒絕申請退款請求；向貨幣兌換系統伺服器發送第二通知資訊，第二通知資訊用以通知貨幣兌換系統伺服器申請退款請求被拒絕。由於訂單狀態是在用戶到達取鈔櫃檯且未取鈔時被修改為已取鈔狀態的，因此在用戶實際取鈔的過程中貨幣兌換訂單的訂單狀態已經是已取鈔狀態，即使在這個過程中接收到貨幣兌換系統伺服器發送的申請退款請求，該申請退款請求也將被拒絕，能夠避免用戶在取鈔的同時申請退款給貨幣兌換公司帶來的資產損失。
圖3是根據本發明的另一個實施例的用於貨幣兌換的方法的流程圖。圖3的方法由用於貨幣兌換的裝置來執行，用於貨幣兌換的裝置例如可以是貨幣兌換系統伺服器。
如圖3所示出的，在S302處，若確定接受用戶端發送的申請退款請求，則向貨幣兌換公司伺服器發送所述申請退款請求。
可選地，在一些實施例中，若確定接收到申請退款請求時，貨幣兌換訂單的訂單狀態為已配鈔狀態或已支付狀態，則確定接受所述申請退款請求。
可以理解的是，在S302處，接受用戶端發送的申請退款請求意味著允許用戶申請退款，但最終是否能夠退款給用戶取決於貨幣兌換公司回饋的資訊。
進一步地，在一些實施例中，圖2所示的方法還包括：接收貨幣兌換公司伺服器發送的第一通知資訊，第一通知資訊用以通知貨幣兌換訂單的訂單狀態為已取鈔狀態；若確定接收到申請退款請求時貨幣兌換訂單的狀態為已取鈔狀態，則確定拒絕申請退款請求。也就是說，如果接收到申請退款請求時貨幣兌換訂單的訂單狀態為已取鈔狀態，則確定不允許用戶申請退款。
在S304處，接收所述貨幣兌換公司伺服器發送的第二通知資訊，第二通知資訊是兌換公司伺服器在接收到所述申請退款請求時貨幣兌換訂單的訂單狀態為已取鈔狀態時發送的，已取鈔狀態為貨幣兌換公司伺服器在接收到訂單狀態修改請求時將所述貨幣兌換訂單修改後的狀態，所述訂單狀態修改請求用以請求在用戶到達取鈔櫃檯且未取鈔時將所述貨幣兌換訂單的訂單狀態修改為已取鈔狀態，第二通知資訊用以通知所述申請退款請求被所述貨幣兌換公司伺服器拒絕。
可選地，在一些實施例中，在接收到貨幣兌換公司伺服器發送的第二通知資訊之後，確認用戶的申請退款請求被貨幣兌換公司伺服器拒絕，則向申請退款請求的用戶端發送通知用戶端申請退款請求被拒絕的通知資訊，以使用戶獲知申請退款失敗。
可選地，在另一些實施例中，如果兌換公司伺服器在接收到申請退款請求時貨幣兌換訂單的訂單狀態不是已取鈔狀態，例如為已配鈔狀態，則兌換公司伺服器向貨幣兌換系統伺服器發送通知申請退款請求被接受的通知資訊，兌換系統伺服器接收到該通知資訊後，按照約定退款給申請退款的用戶。
可以看出，圖3所示的方法，貨幣兌換系統伺服器在向貨幣兌換公司伺服器發送申請退款請求之後，如果貨幣兌換公司伺服器確定接收到申請退款請求時貨幣兌換訂單的訂單狀態為已取鈔狀態，則貨幣兌換公司伺服器將拒絕該申請退款請求，並向貨幣兌換系統伺服器發送通知申請退款請求被拒絕的第二通知資訊，從而使得貨幣兌換系統伺服器拒絕用戶的退款申請。由於貨幣兌換訂單的訂單狀態是在用戶實際取鈔之前被修改為已取鈔狀態的，即使用戶在實際取鈔的過程中，貨幣兌換系統伺服器向貨幣兌換公司伺服器發送申請退款請求，該申請退款請求也會被拒絕，從而避免在用戶取鈔的同時接收到用戶的申請退款請求導致的用戶取鈔和申請退款均成功的情況帶來的資金損失。
以上結合圖1至圖3詳細描述了根據本發明實施例的用於貨幣兌換的方法。下面將結合圖4詳細描述根據本發明實施例的貨幣兌換公司伺服器。參考圖4，在硬體層面，貨幣兌換公司伺服器包括處理器，可選地，包括內部匯流排、網路介面、記憶體。其中，記憶體可能包含記憶體，例如高速隨機存取記憶體(Random-Access Memory，RAM)，也可能還包括非揮發性記憶體(non-volatile memory)，例如至少1個磁碟記憶體等。當然，該貨幣兌換公司伺服器還可能包括其他業務所需要的硬體。
處理器、網路介面和記憶體可以透過內部匯流排相互連接，該內部匯流排可以是工業標準架構(Industry Standard Architecture，ISA)匯流排、周邊組件互連標準(Peripheral Component Interconnect，PCI)匯流排或延伸工業標準架構(Extended Industry Standard Architecture，EISA)匯流排等。所述匯流排可以分為位址匯流排、資料匯流排、控制匯流排等。為了便於表示，圖4中僅用一個雙向箭頭表示，但並不表示僅有一根匯流排或一種類型的匯流排。
記憶體，用以存放程式。具體地，程式可以包括程式碼，所述程式碼包括電腦操作指令。記憶體可以包括記憶體和非揮發性記憶體，並向處理器提供指令和資料。
處理器從非揮發性記憶體中讀取對應的電腦程式到記憶體中然後運行，在邏輯層面上形成用於貨幣兌換的裝置。處理器，執行記憶體所存放的程式，並具體用來執行以下操作：
若接收到訂單狀態修改請求，則將貨幣兌換訂單的訂單狀態修改為已取鈔狀態，所述訂單狀態修改請求用以請求在用戶到達取鈔櫃檯且未取鈔時將所述貨幣兌換訂單的訂單狀態修改為已取鈔狀態；
向貨幣兌換系統伺服器發送第一通知資訊，所述第一通知資訊用以通知所述貨幣兌換伺服器所述貨幣兌換訂單的訂單狀態為已取鈔狀態，所述貨幣兌換系統伺服器用以在所述貨幣兌換訂單的訂單狀態為已取鈔狀態時拒絕用戶端發送的申請退款請求。
上述如本發明圖2所示實施例揭示的用於貨幣兌換的裝置執行的方法可以應用於處理器中，或者由處理器來實現。處理器可能是一種積體電路晶片，具有信號的處理能力。在實現過程中，上述方法的各步驟可以透過處理器中的硬體的整合邏輯電路或者軟體形式的指令完成。上述的處理器可以是通用處理器，包括中央處理器(Central Processing Unit，CPU)、網路處理器(Network Processor，NP)等；還可以是數位訊號處理器(Digital Signal Processor，DSP)、特殊應用積體電路(Application Specific Integrated Circuit，ASIC)、現場可程式設計閘陣列(Field-Programmable Gate Array，FPGA)或者其他可程式設計邏輯裝置、分開的閘或者電晶體邏輯裝置、分開的硬體元件。可以實現或者執行本發明實施例中的揭示的各方法、步驟及邏輯方塊圖。通用處理器可以是微處理器或者該處理器也可以是任何習知的處理器等。結合本發明實施例所揭示的方法的步驟可以直接體現為硬體解碼處理器執行完成，或者用解碼處理器中的硬體及軟體模組組合執行完成。軟體模組可以位於隨機記憶體，快閃記憶體、唯讀記憶體，可程式設計唯讀記憶體或者電可讀寫可程式設計記憶體、暫存器等本領域成熟的儲存媒體中。該儲存媒體位於記憶體，處理器讀取記憶體中的資訊，結合其硬體完成上述方法的步驟。
當然，除了軟體實現方式之外，本發明的貨幣兌換公司伺服器並不排除其他實現方式，比如邏輯裝置抑或軟硬體結合的方式等等，也就是說以下處理流程的執行主體並不限定於各個邏輯單元，也可以是硬體或邏輯裝置。
本發明實施例還提出了一種電腦可讀儲存媒體，該電腦可讀儲存媒體儲存一個或多個程式，該一個或多個程式包括指令，該指令當被包括多個應用程式的貨幣兌換公司伺服器執行時，能夠使該貨幣兌換公司伺服器執行圖2所示實施例的方法，並具體用於執行以下方法：
若接收到訂單狀態修改請求，則將貨幣兌換訂單的訂單狀態修改為已取鈔狀態，所述訂單狀態修改請求用於請求在用戶到達取鈔櫃檯且未取鈔時將所述貨幣兌換訂單的訂單狀態修改為已取鈔狀態；
向貨幣兌換系統伺服器發送第一通知資訊，所述第一通知資訊用於通知所述貨幣兌換伺服器所述貨幣兌換訂單的訂單狀態為已取鈔狀態，所述貨幣兌換系統伺服器用於在所述貨幣兌換訂單的訂單狀態為已取鈔狀態時拒絕用戶端發送的申請退款請求。
下面將結合圖5詳細描述根據本發明另一實施例的貨幣兌換系統伺服器。參考圖5，在硬體層面，貨幣兌換系統伺服器包括處理器，可選地，包括內部匯流排、網路介面、記憶體。其中，記憶體可能包含記憶體，例如高速隨機存取記憶體(Random-Access Memory，RAM)，也可能還包括非揮發性記憶體(non-volatile memory)，例如至少1個磁碟記憶體等。當然，該貨幣兌換系統伺服器還可能包括其他業務所需要的硬體。
處理器、網路介面和記憶體可以透過內部匯流排相互連接，該內部匯流排可以是工業標準架構(Industry Standard Architecture，ISA)匯流排、外設部件互連標準(Peripheral Component Interconnect，PCI)匯流排或延伸工業標準架構(Extended Industry Standard Architecture，EISA)匯流排等。所述匯流排可以分為位址匯流排、資料匯流排、控制匯流排等。為便於表示，圖5中僅用一個雙向箭頭表示，但並不表示僅有一根匯流排或一種類型的匯流排。
記憶體，用於存放程式。具體地，程式可以包括程式碼，所述程式碼包括電腦操作指令。記憶體可以包括記憶體和非揮發性記憶體，並向處理器提供指令和資料。
處理器從非揮發性記憶體中讀取對應的電腦程式到記憶體中然後運行，在邏輯層面上形成用於貨幣兌換的裝置。處理器，執行記憶體所存放的程式，並具體用於執行以下操作：
若確定接受用戶端發送的申請退款請求，則向貨幣兌換公司伺服器發送所述申請退款請求；
接收所述貨幣兌換公司伺服器發送的第二通知資訊，第二通知資訊是兌換公司伺服器在接收到所述申請退款請求時貨幣兌換訂單的訂單狀態為已取鈔狀態時發送的，已取鈔狀態為貨幣兌換公司伺服器在接收到訂單狀態修改請求時將所述貨幣兌換訂單修改後的狀態，所述訂單狀態修改請求用於請求在用戶到達取鈔櫃檯且未取鈔時將所述貨幣兌換訂單的訂單狀態修改為已取鈔狀態，第二通知資訊用於通知所述申請退款請求被所述貨幣兌換公司伺服器拒絕。
上述如本發明圖3所示實施例揭示的用於貨幣兌換的裝置執行的方法可以應用於處理器中，或者由處理器實現。處理器可能是一種積體電路晶片，具有信號的處理能力。在實現過程中，上述方法的各步驟可以透過處理器中的硬體的整合邏輯電路或者軟體形式的指令來完成。上述的處理器可以是通用處理器，包括中央處理器(Central Processing Unit，CPU)、網路處理器(Network Processor，NP)等；還可以是數位訊號處理器(Digital Signal Processor，DSP)、特殊應用積體電路(Application Specific Integrated Circuit，ASIC)、現場可程式設計閘陣列(Field-Programmable Gate Array，FPGA)或者其他可程式設計邏輯裝置、分開的閘或者電晶體邏輯裝置、分開的硬體元件。可以實現或者執行本發明實施例中的揭示的各方法、步驟及邏輯方塊圖。通用處理器可以是微處理器或者該處理器也可以是任何習知的處理器等。結合本發明實施例所揭示的方法的步驟可以直接體現為硬體解碼處理器執行完成，或者用解碼處理器中的硬體及軟體模組組合執行完成。軟體模組可以位於隨機記憶體，快閃記憶體、唯讀記憶體，可程式設計唯讀記憶體或者電可讀寫可程式設計記憶體、暫存器等本領域熟知的儲存媒體中。該儲存媒體位於記憶體，處理器讀取記憶體中的資訊，結合其硬體來完成上述方法的步驟。
當然，除了軟體實現方式之外，本發明的貨幣兌換系統伺服器並不排除其他實現方式，比如邏輯裝置抑或軟硬體結合的方式等等，也就是說以下處理流程的執行主體並不限定於各個邏輯單元，也可以是硬體或邏輯裝置。
本發明實施例還提出了一種電腦可讀儲存媒體，該電腦可讀儲存媒體儲存一個或多個程式，該一個或多個程式包括指令，該指令當被包括多個應用程式的貨幣兌換系統伺服器執行時，能夠使該貨幣兌換系統伺服器執行圖2所示實施例的方法，並具體用於執行以下方法：
若確定接受用戶端發送的申請退款請求，則向貨幣兌換公司伺服器發送所述申請退款請求；
接收所述貨幣兌換公司伺服器發送的第二通知資訊，第二通知資訊是兌換公司伺服器在接收到所述申請退款請求時貨幣兌換訂單的訂單狀態為已取鈔狀態時發送的，已取鈔狀態為貨幣兌換公司伺服器在接收到訂單狀態修改請求時將所述貨幣兌換訂單修改後的狀態，所述訂單狀態修改請求用以請求在用戶到達取鈔櫃檯且未取鈔時將所述貨幣兌換訂單的訂單狀態修改為已取鈔狀態，第二通知資訊用以通知所述申請退款請求被所述貨幣兌換公司伺服器拒絕。
圖6是本發明的一個實施例的用於貨幣兌換的裝置的結構示意圖。請參考圖6，在一種軟體實施方式中，用戶貨幣兌換的裝置600可包括：處理單元601、和收發單元602，其中，
處理單元601，若接收到訂單狀態修改請求，則將貨幣兌換訂單的訂單狀態修改為已取鈔狀態，所述訂單狀態修改請求用以請求在用戶到達取鈔櫃檯且未取鈔時將所述貨幣兌換訂單的訂單狀態修改為已取鈔狀態；
收發單元602，向貨幣兌換系統伺服器發送第一通知資訊，所述第一通知資訊用以通知所述貨幣兌換伺服器所述貨幣兌換訂單的訂單狀態為已取鈔狀態，所述貨幣兌換系統伺服器用以在所述貨幣兌換訂單的訂單狀態為已取鈔狀態時拒絕用戶端發送的申請退款請求。
根據本發明實施例的用於貨幣兌換的裝置，在接收到用以請求在用戶到達取鈔櫃檯且未取鈔時將貨幣兌換訂單的訂單狀態修改為已取鈔狀態的訂單狀態修改請求時，將貨幣兌換訂單的訂單狀態修改為已取鈔狀態，並透過向貨幣兌換系統伺服器發送第一通知資訊，通知貨幣兌換系統伺服器貨幣兌換訂單的訂單狀態為已取鈔狀態，使得用戶在實際取鈔的過程中貨幣兌換訂單的訂單狀態已被修改為已取鈔狀態並同步到貨幣兌換系統伺服器，因此即使用戶在實際取鈔的過程中向貨幣兌換伺服器發送申請退款請求，該申請退款請求也會被拒絕，從而避免用戶在取鈔的同時申請退款給貨幣兌換公司帶來的資金損失。
可選地，作為一個實施例，處理單元601：
若確定接收到所述訂單狀態修改請求時所述貨幣兌換訂單的訂單狀態為已配鈔狀態，則將所述貨幣兌換訂單的訂單狀態由已配鈔狀態變更為已取鈔狀態。
可選地，作為一個實施例，處理單元601：
若確定接收到訂單狀態修改請求時所述貨幣兌換訂單的訂單狀態不是已配鈔狀態，則拒絕將所述貨幣兌換訂單的訂單狀態修改為已取鈔狀態。
可選地，作為一個實施例，處理單元601：若在接收到所述貨幣兌換系統伺服器發送的申請退款請求時，所述貨幣兌換訂單的訂單狀態為已取鈔狀態，則確定拒絕所述申請退款請求；
收發單元602，向所述貨幣兌換系統伺服器發送第二通知資訊，第二通知資訊用以通知所述貨幣兌換系統伺服器所述申請退款請求被拒絕。
用於貨幣兌換的裝置600還可執行圖2所示實施例的方法，並實現用於貨幣兌換的裝置在圖2所示實施例的功能，本發明實施例在此不再贅述。
圖7是本發明的另一個實施例的用於貨幣兌換的裝置的結構示意圖。請參考圖7，在一種軟體實施方式中，用於貨幣兌換的裝置700可包括：發送單元701和接收單元702，其中，
發送單元701，若確定接受用戶端發送的申請退款請求，則向貨幣兌換公司伺服器發送所述申請退款請求；
接收單元702，接收所述貨幣兌換公司伺服器發送的第二通知資訊，第二通知資訊是兌換公司伺服器在接收到所述申請退款請求時貨幣兌換訂單的訂單狀態為已取鈔狀態時發送的，已取鈔狀態為貨幣兌換公司伺服器在接收到訂單狀態修改請求時將所述貨幣兌換訂單修改後的狀態，所述訂單狀態修改請求用於請求在用戶到達取鈔櫃檯且未取鈔時將所述貨幣兌換訂單的訂單狀態修改為已取鈔狀態，第二通知資訊用以通知所述申請退款請求被所述貨幣兌換公司伺服器拒絕。
根據本發明實施例的用於貨幣兌換的裝置，在向貨幣兌換公司伺服器發送申請退款請求之後，接收貨幣兌換公司伺服器在接收到申請退款請求時貨幣兌換訂單的訂單狀態為已取鈔狀態時發送的第二通知資訊。由於貨幣兌換訂單的訂單狀態是在用戶實際取鈔之前被修改為已取鈔狀態的，即使用戶在實際取鈔的過程中，用於貨幣兌換的裝置向貨幣兌換公司伺服器發送申請退款請求，該申請退款請求也會被拒絕，從而避免在用戶取鈔的同時接收到用戶的申請退款請求導致的用戶取鈔和申請退款均成功的情況帶來的資金損失。
可選地，作為一個實施例，如圖7所示出的，用於貨幣兌換的裝置700還包括處理單元703：
處理單元703，若確定接收單元702接收到所述申請退款請求時，所述貨幣兌換訂單的訂單狀態為已配鈔狀態或已支付狀態，則確定接受所述申請退款請求。
可選地，作為一個實施例，如圖7所示出的，用於貨幣兌換的裝置700還包括處理單元703；
接收單元702，接收所述貨幣兌換公司伺服器發送的第一通知資訊，第一通知資訊用以通知所述貨幣兌換訂單的訂單狀態為已取鈔狀態；
處理單元703，若確定接收單元702接收到所述申請退款請求時所述貨幣兌換訂單的狀態為已取鈔狀態，則確定拒絕所述申請退款請求。
用於貨幣兌換的裝置700還可執行圖3所示實施例的方法，並實現用於貨幣兌換的裝置在圖3所示實施例的功能，本發明實施例在此不再贅述。
總之，以上所述僅為本發明的較佳實施例而已，並非用來限定本發明的保護範圍。凡在本發明的精神和原則之內，所作的任何修改、等同替換、改進等，均應包含在本發明的保護範圍之內。
上述實施例闡明的系統、裝置、模組或單元，具體可以由電腦晶片或實體實現，或者由具有某種功能的產品來實現。一種典型的實現設備為電腦。具體的，電腦例如可以為個人電腦、膝上型電腦、蜂巢式電話、相機電話、智慧型電話、個人數位助理、媒體播放機、導航設備、電子郵件設備、遊戲控制台、平板電腦、可穿戴式設備或者這些設備中的任何設備的組合。
電腦可讀媒體包括永久性和非永久性、可移動和非可移動媒體可以由任何方法或技術來實現資訊儲存。資訊可以是電腦可讀指令、資料結構、程式的模組或其他資料。電腦的儲存媒體的例子包括，但不限於相變記憶體(PRAM)、靜態隨機存取記憶體(SRAM)、動態隨機存取記憶體(DRAM)、其他類型的隨機存取記憶體(RAM)、唯讀記憶體(ROM)、電可擦除可程式設計唯讀記憶體(EEPROM)、快閃記憶體或其他記憶體技術、唯讀光碟唯讀記憶體(CD-ROM)、數位多功能光碟(DVD)或其他光學儲存、磁盒式磁帶，磁帶磁磁片儲存或其他磁性存放裝置或任何其他非傳輸媒體，可用來儲存可以被計算設備訪問的資訊。按照本文中的界定，電腦可讀媒體不包括暫態性電腦可讀媒體(transitory media)，如調變的資料信號和載波。
還需要說明的是，術語“包括”、“包含”或者其任何其他變型意在涵蓋非排他性的包含，從而使得包括一系列要素的過程、方法、商品或者設備不僅包括那些要素，而且還包括沒有明確列出的其他要素，或者是還包括為這種過程、方法、商品或者設備所固有的要素。在沒有更多限制的情況下，由語句“包括一個……”限定的要素，並不排除在包括所述要素的過程、方法、商品或者設備中還存在另外的相同要素。
本說明書中的各個實施例均採用漸進的方式描述，各個實施例之間相同相似的部分互相參見即可，每個實施例重點說明的都是與其他實施例的不同之處。尤其，對於系統實施例而言，由於其基本相似於方法實施例，所以描述得比較簡單，相關之處參見方法實施例的部分說明即可。In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described The embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
In order to facilitate the understanding of the embodiment of the present invention, firstly, the order status of the currency exchange order in each stage of the embodiment of the present invention is introduced here. As shown in Figure 1, the order status includes the initial status, confirmed status, paid status, dispensed status, withdrawal status, overtime non-withdrawal status, refund request status, refund status, and failed status . Among them, the initial state: After the user selects a currency on the mobile phone client and places an order, the currency exchange system server generates a currency exchange order. Confirmed status: The currency exchange company server receives the order request and confirms that the user can place the order normally. Paid status: The user pays for the currency exchange order. Cash distribution status: The currency exchange company has completed distribution of cash for users. Withdrawal status: The user goes to the currency exchange company to complete the withdrawal. Overtime non-withdrawal status: The user did not withdraw money from the currency exchange company within the specified time, and did not apply for a refund within the specified time. Refund application status: The user applies for a refund after successful payment and before withdrawal. Refunded status: The currency exchange system has refunded the user. Failure status: The server of the currency exchange company confirms that the user cannot place an order normally, the user fails to pay, fails to dispense money for the user, and fails to withdraw money.
The method for currency exchange according to an embodiment of the present invention will be described in detail below in conjunction with the order status shown in FIG. 1.
Fig. 2 is a flowchart of a method for currency exchange according to an embodiment of the present invention. The method of FIG. 2 is executed by a device for currency exchange.
As shown in Figure 2, at S202, if an order status modification request is received, the order status of the currency exchange order is modified to a cash withdrawal state, and the order status modification request is used to request that the user arrives at the cash withdrawal counter And when the money is not withdrawn, the order status of the currency exchange order is modified to the money withdrawn state.
It should be noted that the method of the embodiment of the present invention requires the following rules to be agreed in advance: (1) The staff of the currency exchange company needs to modify the order status when the user arrives at the cash withdrawal counter and does not withdraw the cash (2) The currency exchange company's The staff must provide cash withdrawal services for users only when the order status of the currency exchange order is cash withdrawal status.
Optionally, in some embodiments, at S202, the order status of the currency exchange order is modified to the cash withdrawal status, including: if it is determined that the order status of the currency exchange order is the cash dispensed status when the order status modification request is received , The order status of the currency exchange order is changed from the dispensed state to the withdrawn state.
Further, in some embodiments, if it is determined that when the order status modification request is received, the order status of the currency exchange order is not the cash dispensed status, then the order status of the rejected currency conversion order is modified to the cash withdrawal status.
That is to say, when modifying the order status of the currency exchange order, the pre-status check is performed first, and the order status is modified if the rules are met, otherwise the order status is not modified. This can ensure that the funds of users and currency exchange companies are not lost.
For example, if the order status of a currency exchange order is one of the initial status, confirmed status, paid status, refund request status, refunded status, and failed status when the request to modify the order status is received, the order is not correct The status is modified. Only when the order status of the currency exchange order has been dispensed when the order status modification request is received, the order status is changed from the dispensed state to the cash withdrawal state, which can prevent the currency exchange company from being a user In the case of cash distribution, the order status is changed to the cash withdrawal status, which causes asset losses to the user if the user cannot withdraw the cash.
Or for another example, if the order status of the currency exchange order is refunded when the order status modification request is received, the order status is refused to be changed to the cash withdrawal status, that is, if the refund has been given to the user, the user is not allowed to withdraw cash , And then will not provide users with cash withdrawal services, which can avoid the asset loss caused by the currency exchange company after the user withdraws the cash after the refund.
At S204, first notification information is sent to the currency exchange system server, where the first notification information is used to notify the currency exchange server that the currency exchange order has an order status of a cash withdrawal state, and the currency exchange system The server is used for rejecting the refund request sent by the user terminal when the order status of the currency exchange order is the cash withdrawal status.
That is to say, at S204, if the order status has been modified to the cash withdrawal status, this status is synchronized to the currency exchange system server. Afterwards, if the currency exchange system server receives a refund request sent by the client, the currency exchange system server will reject the refund request. In this way, it is possible to avoid asset losses to the currency exchange company caused by the user applying for a refund while withdrawing money.
In the embodiment of the present invention, optionally, the method shown in FIG. 2 further includes: if the order status of the currency exchange order is the cash withdrawal status when the request for refund from the server of the currency exchange system is received, then It is determined that the refund request is rejected; the second notification information is sent to the server of the currency exchange system, and the second notification information is used to notify the server of the currency exchange system that the refund request is rejected. Since the order status is changed to the cash withdrawal status when the user arrives at the cash withdrawal counter and the cash is not withdrawn, the order status of the currency exchange order is already cash withdrawal during the actual cash withdrawal process, even during this process When receiving a refund request sent by the server of the currency exchange system, the refund request will also be rejected, which can avoid the asset loss of the currency exchange company when the user applies for a refund while withdrawing money.
Fig. 3 is a flowchart of a method for currency exchange according to another embodiment of the present invention. The method in FIG. 3 is executed by an apparatus for currency exchange, and the apparatus for currency exchange may be, for example, a currency exchange system server.
As shown in FIG. 3, at S302, if it is determined that the refund request sent by the client is accepted, the refund request is sent to the server of the currency exchange company.
Optionally, in some embodiments, if it is determined that when the request for refund application is received, the order status of the currency exchange order is the status of dispensed or paid, then it is determined to accept the request for refund.
It is understandable that at S302, accepting the refund request sent by the user terminal means that the user is allowed to apply for a refund, but whether the refund can be given to the user in the end depends on the information provided by the currency exchange company.
Further, in some embodiments, the method shown in FIG. 2 further includes: receiving first notification information sent by a server of a currency exchange company, the first notification information being used to notify that the order status of the currency exchange order is a cash withdrawal status; If it is determined that the status of the currency exchange order when the refund request is received is the cash withdrawal status, it is determined that the refund request is rejected. That is to say, if the order status of the currency exchange order is the cash withdrawal status when the request for refund is received, it is determined that the user is not allowed to apply for a refund.
At S304, the second notification information sent by the server of the currency exchange company is received. The second notification information is when the server of the currency exchange company receives the refund request when the order status of the currency exchange order is in the cash withdrawal state The cash withdrawal status is the state in which the currency exchange company server has modified the currency exchange order when it receives the order status modification request. When making banknotes, the order status of the currency exchange order is modified to the state of withdrawn, and the second notification information is used to notify that the refund request is rejected by the server of the currency exchange company.
Optionally, in some embodiments, after receiving the second notification information sent by the server of the currency exchange company, it is confirmed that the user's request for refund is rejected by the server of the currency exchange company, and then the client that applies for the refund request is sent Send notification information to notify the client that the refund request is rejected, so that the user is notified that the refund application has failed.
Optionally, in other embodiments, if the currency exchange order's order status is not in the cash-withdrawn state when the exchange company server receives the refund request The redemption system server sends a notification that the refund request is accepted. After receiving the notification, the redemption system server will refund the user who applied for the refund according to the agreement.
It can be seen that, in the method shown in Figure 3, after the currency exchange system server sends a refund request to the currency exchange company server, if the currency exchange company server determines the order status of the currency exchange order when the refund request is received The currency exchange company server will reject the refund request and send a second notification to the currency exchange system server that the refund request has been rejected, so that the currency exchange system server rejects the user Request for a refund. Since the order status of the currency exchange order is changed to the cash withdrawal status before the user actually withdraws the currency, even if the user is actually withdrawing the currency, the currency exchange system server sends a refund request to the currency exchange company server. The refund application request will also be rejected, so as to avoid the capital loss caused by the successful withdrawal of the user's money and the successful application of the refund when the user's request for the refund is received while the user withdraws the money.
The method for currency exchange according to an embodiment of the present invention is described in detail above with reference to FIGS. 1 to 3. The server of a currency exchange company according to an embodiment of the present invention will be described in detail below with reference to FIG. 4. Referring to Figure 4, at the hardware level, the currency exchange company server includes a processor, optionally, an internal bus, a network interface, and a memory. Among them, the memory may include memory, such as high-speed random access memory (Random-Access Memory, RAM), and may also include non-volatile memory (non-volatile memory), such as at least one disk memory, etc. . Of course, the server of the currency exchange company may also include hardware required for other services.
The processor, network interface, and memory can be connected to each other through an internal bus, which can be an Industry Standard Architecture (ISA) bus or a Peripheral Component Interconnect (PCI) bus Or extended industry standard architecture (Extended Industry Standard Architecture, EISA) bus, etc. The bus can be divided into address bus, data bus, control bus, etc. For ease of presentation, only one double-headed arrow is used to indicate in FIG. 4, but it does not mean that there is only one busbar or one type of busbar.
Memory is used to store programs. Specifically, the program may include program code, and the program code includes computer operation instructions. The memory may include memory and non-volatile memory, and provide instructions and data to the processor.
The processor reads the corresponding computer program from the non-volatile memory to the memory and then runs it to form a device for currency exchange on a logical level. The processor executes the programs stored in the memory, and is specifically used to perform the following operations:
If the order status modification request is received, the order status of the currency exchange order is modified to the cash withdrawal state, and the order status modification request is used to request the currency exchange order when the user arrives at the cash withdrawal counter and has not withdrawn the cash. The order status is changed to the cash withdrawal status;
The first notification information is sent to the currency exchange system server, and the first notification information is used to notify the currency exchange server that the order status of the currency exchange order is the withdrawal state, and the currency exchange system server is used for When the order status of the currency exchange order is the cash withdrawal status, the refund request sent by the user terminal is rejected.
The method executed by the apparatus for currency exchange disclosed in the embodiment shown in FIG. 2 of the present invention may be applied to a processor or implemented by the processor. The processor may be an integrated circuit chip with signal processing capabilities. In the implementation process, the steps of the above method can be completed through the integrated logic circuit of the hardware in the processor or the instructions in the form of software. The above-mentioned processor can be a general-purpose processor, including a central processing unit (CPU), a network processor (Network Processor, NP), etc.; it can also be a digital signal processor (DSP), a special Application Specific Integrated Circuit (ASIC), Field-Programmable Gate Array (FPGA) or other programmable logic devices, separate gate or transistor logic devices, separate hardware components . The methods, steps, and logic block diagrams disclosed in the embodiments of the present invention can be implemented or executed. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like. The steps of the method disclosed in combination with the embodiments of the present invention can be directly embodied as executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software module can be located in a mature storage medium in the field such as random memory, flash memory, read-only memory, programmable read-only memory, or electrically readable, writable and programmable memory, register. The storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware.
Of course, in addition to the software implementation, the currency exchange company server of the present invention does not exclude other implementations, such as logical devices or a combination of software and hardware, etc. That is to say, the execution body of the following processing flow is not limited to Each logical unit can also be a hardware or a logical device.
The embodiment of the present invention also provides a computer-readable storage medium, the computer-readable storage medium stores one or more programs, the one or more programs include instructions, and the instructions are served by a currency exchange company that includes multiple application programs. When the server is executed, the server of the currency exchange company can execute the method of the embodiment shown in FIG. 2, and is specifically used to execute the following methods:
If an order status modification request is received, the order status of the currency exchange order is modified to the cash withdrawal status, and the order status modification request is used to request that the currency exchange order be exchanged when the user arrives at the cash withdrawal counter and does not withdraw the cash. The order status is changed to the cash withdrawal status;
Send first notification information to the currency exchange system server, where the first notification information is used to notify the currency exchange server that the order status of the currency exchange order is the withdrawal state, and the currency exchange system server is used for When the order status of the currency exchange order is the cash withdrawal status, the refund request sent by the user terminal is rejected.
Hereinafter, the server of the currency exchange system according to another embodiment of the present invention will be described in detail with reference to FIG. 5. Referring to FIG. 5, at the hardware level, the currency exchange system server includes a processor, optionally, an internal bus, a network interface, and a memory. Among them, the memory may include memory, such as high-speed random access memory (Random-Access Memory, RAM), and may also include non-volatile memory (non-volatile memory), such as at least one disk memory, etc. . Of course, the currency exchange system server may also include hardware required for other services.
The processor, network interface, and memory can be connected to each other through an internal bus, which can be an industry standard architecture (ISA) bus or a peripheral component interconnect standard (Peripheral Component Interconnect, PCI) bus Row or extended industry standard architecture (Extended Industry Standard Architecture, EISA) bus, etc. The bus can be divided into address bus, data bus, control bus, etc. For ease of presentation, only one double-headed arrow is used to indicate in FIG. 5, but it does not mean that there is only one busbar or one type of busbar.
Memory, used to store programs. Specifically, the program may include program code, and the program code includes computer operation instructions. The memory may include memory and non-volatile memory, and provide instructions and data to the processor.
The processor reads the corresponding computer program from the non-volatile memory to the memory and then runs it to form a device for currency exchange on a logical level. The processor executes the programs stored in the memory, and is specifically used to perform the following operations:
If it is determined to accept the refund request sent by the client, then send the refund request to the server of the currency exchange company;
Receive the second notification information sent by the server of the currency exchange company. The second notification information is sent by the server of the currency exchange company when the order status of the currency exchange order is the cash withdrawal state when the server of the currency exchange company receives the refund request. The cash withdrawal status is the state in which the currency exchange company server has modified the currency exchange order when it receives the order status modification request. The order status of the currency exchange order is changed to a cash withdrawal state, and the second notification information is used to notify that the refund request is rejected by the server of the currency exchange company.
The method performed by the apparatus for currency exchange disclosed in the embodiment shown in FIG. 3 of the present invention may be applied to a processor or implemented by the processor. The processor may be an integrated circuit chip with signal processing capabilities. In the implementation process, the steps of the above method can be completed through the integrated logic circuit of the hardware in the processor or the instructions in the form of software. The above-mentioned processor can be a general-purpose processor, including a central processing unit (CPU), a network processor (Network Processor, NP), etc.; it can also be a digital signal processor (DSP), a special Application Specific Integrated Circuit (ASIC), Field-Programmable Gate Array (FPGA) or other programmable logic devices, separate gate or transistor logic devices, separate hardware components . The methods, steps, and logic block diagrams disclosed in the embodiments of the present invention can be implemented or executed. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like. The steps of the method disclosed in combination with the embodiments of the present invention can be directly embodied as executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software module can be located in random memory, flash memory, read-only memory, programmable read-only memory, or electrically readable and writable programmable memory, register and other storage media well known in the art. The storage medium is located in the memory, and the processor reads the information in the memory and combines with its hardware to complete the steps of the above method.
Of course, in addition to the software implementation, the currency exchange system server of the present invention does not exclude other implementations, such as logical devices or a combination of software and hardware, etc., which means that the execution body of the following processing flow is not limited to Each logical unit can also be a hardware or a logical device.
An embodiment of the present invention also provides a computer-readable storage medium, the computer-readable storage medium stores one or more programs, the one or more programs include instructions, and the instructions are served by a currency exchange system that includes multiple application programs. When the server is executed, the currency exchange system server can be used to execute the method of the embodiment shown in FIG. 2, and is specifically used to execute the following methods:
If it is determined to accept the refund request sent by the client, then send the refund request to the server of the currency exchange company;
Receive the second notification information sent by the server of the currency exchange company. The second notification information is sent when the server of the exchange company receives the refund request when the order status of the currency exchange order is the cash withdrawal status. The cash withdrawal status is the state in which the currency exchange company server modifies the currency exchange order when it receives the order status modification request. The order status of the currency exchange order is changed to a cash withdrawal state, and the second notification information is used to notify that the refund request is rejected by the server of the currency exchange company.
Fig. 6 is a schematic structural diagram of an apparatus for currency exchange according to an embodiment of the present invention. Please refer to FIG. 6, in a software implementation manner, the user currency exchange apparatus 600 may include: a processing unit 601, and a transceiver unit 602, wherein,
The processing unit 601, if receiving an order status modification request, modify the order status of the currency exchange order to a cash withdrawal state, and the order status modification request is used to request that the user arrives at the cash withdrawal counter and does not withdraw the cash. The order status of the currency exchange order is changed to the cash withdrawal status;
The transceiver unit 602 sends first notification information to the currency exchange system server, where the first notification information is used to notify the currency exchange server that the currency exchange order's order status is a cash withdrawal state, and the currency exchange system The server is used for rejecting the refund request sent by the user terminal when the order status of the currency exchange order is the cash withdrawal status.
According to the apparatus for currency exchange according to the embodiment of the present invention, upon receiving an order status modification request for requesting that the order status of the currency exchange order be modified to the cash withdrawal state when the user arrives at the cash withdrawal counter and the cash is not withdrawn, Modify the order status of the currency exchange order to the cash withdrawal status, and by sending the first notification information to the currency exchange system server, notify the currency exchange system server that the currency conversion order is the cash withdrawal status, so that the user is actually During the cash withdrawal process, the order status of the currency exchange order has been modified to the cash withdrawal status and synchronized to the currency exchange system server. Therefore, even if the user sends a refund request to the currency exchange server during the actual cash withdrawal process, the Requests for refunds will also be rejected, so as to avoid the loss of funds to the currency exchange company when users apply for refunds while withdrawing money.
Optionally, as an embodiment, the processing unit 601:
If it is determined that when the order status modification request is received, the order status of the currency exchange order is the cash dispensed state, then the order status of the currency conversion order is changed from the cash dispensed state to the cash withdrawal state.
Optionally, as an embodiment, the processing unit 601:
If it is determined that when the order status modification request is received, the order status of the currency exchange order is not the cash dispensed state, then refuse to modify the order status of the currency conversion order to the cash withdrawal state.
Optionally, as an embodiment, the processing unit 601: When receiving a refund request sent by the currency exchange system server, the order status of the currency exchange order is the cash withdrawal status, then it is determined to reject the request. State the request for refund;
The transceiver unit 602 sends second notification information to the currency exchange system server, and the second notification information is used to notify the currency exchange system server that the refund request is rejected.
The apparatus 600 for currency exchange can also execute the method of the embodiment shown in FIG. 2 and realize the functions of the apparatus for currency exchange in the embodiment shown in FIG.
Fig. 7 is a schematic structural diagram of an apparatus for currency exchange according to another embodiment of the present invention. Please refer to FIG. 7, in a software implementation manner, the apparatus 700 for currency exchange may include: a sending unit 701 and a receiving unit 702, wherein,
The sending unit 701, if it is determined to accept the refund request sent by the client, then sends the refund request to the server of the currency exchange company;
The receiving unit 702 receives the second notification information sent by the server of the currency exchange company. The second notification information is when the server of the currency exchange company receives the refund request when the order status of the currency exchange order is the cash withdrawal state The cash withdrawal status is the state in which the currency exchange company’s server has modified the currency exchange order when it receives the order status modification request. When making banknotes, the order status of the currency exchange order is modified to the state of withdrawn, and the second notification information is used to notify that the refund request is rejected by the server of the currency exchange company.
According to the apparatus for currency exchange according to the embodiment of the present invention, after sending a refund application request to the server of the currency exchange company, the order status of the currency exchange order is taken when the server of the receiving currency exchange company receives the refund application request. The second notification information sent when the banknote is in the state. Since the order status of the currency exchange order is changed to the cash withdrawal state before the user actually withdraws the currency, even if the user is actually withdrawing the currency, the currency exchange device sends a refund request to the currency exchange company server , The refund application request will also be rejected, so as to avoid the capital loss caused by the successful withdrawal of the user's money and the successful application of the refund when the user's application for a refund request is received while the user withdraws the money.
Optionally, as an embodiment, as shown in FIG. 7, the apparatus 700 for currency exchange further includes a processing unit 703:
The processing unit 703, if it is determined that when the receiving unit 702 receives the refund application request, the order status of the currency exchange order is the cash dispensed state or the paid state, then it determines to accept the refund application request.
Optionally, as an embodiment, as shown in FIG. 7, the apparatus 700 for currency exchange further includes a processing unit 703;
The receiving unit 702 receives first notification information sent by the server of the currency exchange company, where the first notification information is used to notify that the order status of the currency exchange order is a cash withdrawal state;
The processing unit 703 determines to reject the request for refund if it is determined that the state of the currency exchange order when the receiving unit 702 receives the request for refund is withdrawn.
The apparatus 700 for currency exchange can also execute the method of the embodiment shown in FIG. 3, and realize the functions of the apparatus for currency exchange in the embodiment shown in FIG. 3, which will not be repeated here.
In short, the above descriptions are only preferred embodiments of the present invention, and are not used to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
The systems, devices, modules, or units explained in the above embodiments may be implemented by computer chips or entities, or implemented by products with certain functions. A typical implementation device is a computer. Specifically, the computer can be, for example, a personal computer, a laptop computer, a cellular phone, a camera phone, a smart phone, a personal digital assistant, a media player, a navigation device, an email device, a game console, a tablet computer, a wearable Type equipment or a combination of any of these equipment.
Computer-readable media include permanent and non-permanent, removable and non-removable media, and information storage can be realized by any method or technology. Information can be computer-readable instructions, data structures, program modules, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), and other types of random access memory (RAM) , Read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, CD-ROM, digital multi-function Optical discs (DVD) or other optical storage, magnetic cassettes, magnetic tape storage or other magnetic storage devices, or any other non-transmission media, can be used to store information that can be accessed by computing devices. According to the definition in this article, computer-readable media does not include transient computer-readable media (transitory media), such as modulated data signals and carrier waves.
It should also be noted that the terms "include", "include" or any other variation thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or equipment including a series of elements not only includes those elements, but also includes no Other elements clearly listed, or also include elements inherent to such processes, methods, commodities, or equipment. If there are no more restrictions, the element defined by the sentence "including a..." does not exclude the existence of other identical elements in the process, method, commodity, or equipment that includes the element.
The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, as for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and for related parts, please refer to the part of the description of the method embodiment.
