WO2019100645A1 - 实现多级联动下拉框的方法、电子装置及存储介质 - Google Patents

实现多级联动下拉框的方法、电子装置及存储介质 Download PDF

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WO2019100645A1
WO2019100645A1 PCT/CN2018/083076 CN2018083076W WO2019100645A1 WO 2019100645 A1 WO2019100645 A1 WO 2019100645A1 CN 2018083076 W CN2018083076 W CN 2018083076W WO 2019100645 A1 WO2019100645 A1 WO 2019100645A1
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down box
option
drop
array
group
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PCT/CN2018/083076
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English (en)
French (fr)
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赵宝森
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平安科技（深圳）有限公司
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Publication of WO2019100645A1 publication Critical patent/WO2019100645A1/zh

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/90—Details of database functions independent of the retrieved data types
    • G06F16/95—Retrieval from the web
    • G06F16/957—Browsing optimisation, e.g. caching or content distillation

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  • the present application relates to the field of page data processing technologies, and in particular, to a method, an electronic device, and a storage medium for implementing a multi-level linkage drop-down box.
  • the general multi-level linkage plug-ins are basically related to the three-level linkage of the provinces and cities in the country. There is basically no plug-in that can automatically generate the linkage relationship according to the corresponding relationship, so it is difficult to satisfy the linkage of the webpage side to use the drop-down box to let the user choose. Enter the content.
  • the existing webpage drop-down box is too slow to load, the data has to wait a few seconds or even more than ten seconds to load, the customer will lose patience, and some will directly close the webpage and no longer participate in the marketing campaign.
  • the customer experience often represents a business opportunity, giving customers a positive and efficient experience, they will be more willing to participate in your marketing activities, and will improve the evaluation of the company.
  • the technical problem to be solved by the present application is to overcome the problem that the drop-down box of the webpage cannot be customized and the option loading is too slow in the prior art, and a method, an electronic device and a storage medium for implementing the multi-level linkage drop-down box are proposed, which can be The association relationship provided by the user automatically generates a drop-down box group option with multi-level linkage relationship, and the loading display speed is fast.
  • a method for implementing a multi-level linkage drop-down box includes the following steps:
  • the database stores at least one option group, and each group of the option groups includes several options arranged in a hierarchical relationship;
  • the option display linkage according to the change event in the drop-down box of the previous level, the current level drop-down box is matched with the array containing the previous level drop-down box option, and then the JS intercept method is used to obtain the current level drop-down box option in the array.
  • the current level drop-down box according to the change event in the drop-down box of the previous level, the current level drop-down box is matched with the array containing the previous level drop-down box option, and then the JS intercept method is used to obtain the current level drop-down box option in the array. The current level drop-down box.
  • An electronic device includes a memory and a processor, wherein the memory stores a system for implementing a multi-level linkage drop-down box executable by the processor, where the system for implementing a multi-level linkage drop-down box includes:
  • the database stores at least one option group, and each of the group of options includes a plurality of options arranged in a hierarchical relationship;
  • the loading module is configured to convert the option group into an array by executing a JS intercept method when the drop-down box page is accessed, and then load each array into a corresponding drop-down box;
  • the linkage module is configured to match the current level drop-down box with the array containing the previous level drop-down box option according to the change event in the previous level drop-down box, and then obtain the current level drop-down box option in the array by using the JS intercept method.
  • the current level drop-down box is configured to match the current level drop-down box with the array containing the previous level drop-down box option according to the change event in the previous level drop-down box, and then obtain the current level drop-down box option in the array by using the JS intercept method. The current level drop-down box.
  • a computer readable storage medium having stored therein a system for implementing a multi-level linkage drop-down box, the system implementing the multi-level linkage pull-down box being executable by at least one processor to implement the following steps :
  • the database stores at least one option group, and each group of the option groups includes several options arranged in a hierarchical relationship;
  • option linkage display according to the change event in the drop-down box of the previous level, the current level drop-down box is matched with the array containing the previous level drop-down box option, and then the JS intercept method is used to obtain the current level drop-down box option in the array. The current level drop-down box.
  • the positive progress of the application is that the application can automatically generate a drop-down box group option with multi-level linkage relationship according to the user-provided option with hierarchical relationship, and the drop-down box group option is loaded to all levels at one time when the webpage is accessed.
  • the linkage of the options does not need to query the background database, and the display speed is fast.
  • FIG. 1 is a schematic diagram showing the hardware architecture of an embodiment of an electronic device of the present application.
  • FIG. 2 is a schematic diagram of a program module of a first embodiment of a system for implementing a multi-level linkage pull-down box in an electronic device of the present application;
  • FIG. 3 is a schematic diagram showing an option group stored in a database of a first embodiment of a system for implementing a multi-level linkage pull-down box in an electronic device of the present application;
  • FIG. 4 is a schematic diagram showing conversion between an option group and an array in the first embodiment of the system for implementing a multi-level linkage pull-down box in the electronic device of the present application;
  • FIG. 5 is a schematic diagram of an interface used in a first embodiment of a system for implementing a multi-level linkage pull-down box in an electronic device of the present application;
  • FIG. 6 is a schematic diagram of a further program module of a loading module in a second embodiment of a system for implementing a multi-level linkage pull-down box in an electronic device of the present application;
  • FIG. 7 is a schematic diagram of further program modules of a linkage module in a second embodiment of a system for implementing a multi-level linkage pull-down box in an electronic device of the present application;
  • FIG. 8 is a flowchart of Embodiment 1 of a method for implementing a multi-level linkage pull-down box according to the present application;
  • FIG. 9 is a flowchart of constructing a database in Embodiment 2 of a method for implementing a multi-level linkage pull-down box according to the present application;
  • FIG. 10 is a flowchart of loading options in Embodiment 3 of a method for implementing a multi-level linkage pull-down box according to the present application;
  • FIG. 11 is a flow chart showing the linkage of options in the fourth embodiment of the method for implementing the multi-level linkage drop-down box in the present application.
  • the present application proposes an electronic device.
  • the electronic device 2 is an apparatus capable of automatically performing numerical calculation and/or information processing in accordance with an instruction set or stored in advance.
  • the electronic device 2 can be a smartphone, a tablet, a laptop, a desktop computer, a rack server, a blade server, a tower server, or a rack server (including a stand-alone server, or a server cluster composed of multiple servers).
  • the electronic device 2 includes at least, but not limited to, a memory 21, a processor 22, a network interface 23, and a system 20 that implements a multi-level linkage drop-down box via a system bus. among them:
  • the memory 21 includes at least one type of computer readable storage medium including a flash memory, a hard disk, a multimedia card, a card type memory (eg, SD or DX memory, etc.), a random access memory (RAM), Static Random Access Memory (SRAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), Programmable Read Only Memory (PROM), magnetic memory, magnetic disk, optical disk, and the like.
  • the memory 21 may be an internal storage unit of the electronic device 2, such as a hard disk or a memory of the electronic device 2.
  • the memory 21 may also be an external storage device of the electronic device 2, such as a plug-in hard disk equipped on the electronic device 2, a smart memory card (SMC), and a secure digital device. (Secure Digital, SD) card, flash card, etc.
  • the memory 21 can also include both the internal storage unit of the electronic device 2 and its external storage device.
  • the memory 21 is generally used to store an operating system installed in the electronic device 2 and various types of application software, such as the program code of the system 20 that implements the multi-level linkage drop-down box. Further, the memory 21 can also be used to temporarily store various types of data that have been output or are to be output.
  • the processor 22 may be a Central Processing Unit (CPU), controller, microcontroller, microprocessor, or other data processing chip in some embodiments.
  • the processor 22 is typically used to control the overall operation of the electronic device 2, such as performing control and processing associated with data interaction or communication with the electronic device 2.
  • the processor 22 is configured to run program code or process data stored in the memory 21, such as running the system 20 for implementing a multi-level linkage drop-down box.
  • the network interface 23 may comprise a wireless network interface or a wired network interface, which is typically used to establish a communication connection between the electronic device 2 and other electronic devices.
  • the network interface 23 is configured to connect the electronic device 2 to an external terminal through a network, establish a data transmission channel, a communication connection, and the like between the electronic device 2 and an external terminal.
  • the network may be an intranet, an Internet, a Global System of Mobile communication (GSM), a Wideband Code Division Multiple Access (WCDMA), a 4G network, or a 5G network.
  • Wireless or wired networks such as network, Bluetooth, Wi-Fi, etc.
  • Figure 1 shows only the electronic device 2 having the components 21-23, but it should be understood that not all illustrated components may be implemented and that more or fewer components may be implemented instead.
  • system 20 implementing the multi-level linkage pull-down box stored in the memory 21 may be divided into one or more program modules, and the one or more program modules are stored in the memory 21, and It can be performed by one or more processors (the processor 22 in this embodiment) to complete the application.
  • FIG. 2 is a schematic diagram of a program module of the first embodiment of the system 20 for implementing a multi-level linkage pull-down box.
  • the system 20 for implementing a multi-level linkage drop-down box may be divided into a database 201, The module 202 and the linkage module 203 are loaded.
  • the program module referred to in the present application refers to a series of computer program instruction segments capable of performing a specific function. The following description will specifically describe the specific functions of the program modules 201-203.
  • the database 201 stores at least one option group, and each of the option groups includes a plurality of options arranged in a hierarchical relationship;
  • the loading module 202 is configured to convert the option group into an array by executing a JS intercept method when the drop-down box page is accessed, and then load each array into a corresponding drop-down box;
  • the JS interception method described herein refers to intercepting a string by using a commonly used script tool JAVASCRIPT.
  • the commonly used function for intercepting a string may be substr(start, length) or substring(start, stop); where start means The start position of the string is intercepted, length refers to the length to be intercepted from the beginning of the interception of the string, and stop refers to the stop position of the intercepted string (since the js subscript starts from 0 and the stop position is actually stop-1).
  • start means The start position of the string is intercepted
  • length refers to the length to be intercepted from the beginning of the interception of the string
  • stop refers to the stop position of the intercepted string (since the js subscript starts from 0 and the stop position is actually stop-1).
  • the linkage module 203 is configured to: according to the change event in the drop-down box of the previous level, match the current level drop-down box with an array containing the drop-down box option of the previous level, and then obtain the current level drop-down box option in the array by using the JS intercept method. Put it in the current level drop-down box.
  • the change event described here refers to an event in which an option in the drop-down box is selected.
  • the hierarchical relationship can be similar to the relationship of the type of “level one, two, three levels” (can be divided into more levels according to needs). In this example, it is specifically “school college specialty”.
  • the options can be specifically organized into the format of several groups of option groups as shown in FIG. 3; the group of selected option groups are pre-stored in the database in the background of the system.
  • the system will automatically load the options in the database automatically into the corresponding drop-down box, specifically using the JS intercept method to load, first convert the option group into an array, the conversion process is as As shown in Figure 4, each array is loaded into the corresponding drop-down box, that is, the first-level array [University] is loaded into the first-level drop-down box, and the second-level array [University, College] is loaded to the second-level drop-down.
  • the third level of the array [College, Professional] is loaded into the third level drop-down box, and if there is an array of the next level, it is loaded by analogy.
  • the user first clicks on the first-level drop-down box to display a number of universities (A university, B university, C university, etc.) for the user to select.
  • universities A university, B university, C university, etc.
  • the change event is triggered.
  • the university A is specifically selected;
  • the second level drop-down box will automatically match the array containing the first-level drop-down box options, specifically [A University, A1 Academy], [A University, A2 Academy], [A University, A3 Academy], etc.
  • FIG. 6 is a schematic diagram of a program module of the second embodiment of the system 20 for implementing a multi-level linkage pull-down box.
  • the loading module 202 of the system 20 for implementing the multi-level linkage drop-down box may also be It is further divided into a calling sub-module 2021, a transform sub-module 2022, and a load sub-module 2023.
  • the calling sub-module 2021 is configured to retrieve an option group stored in the database when the drop-down box page is accessed;
  • the conversion sub-module 2022 is configured to sequentially intercept each option in the option group by using a JS interception method, and convert the option group into a hierarchical relationship according to a conversion rule between a preset option group and an array.
  • the loading sub-module 2023 is configured to load each array into a corresponding drop-down box.
  • the system automatically retrieves the option group stored in the database, and then intercepts the options in each option group through the JS interception method. After the interception of the option, according to the The level of the option is converted to the value of the array corresponding to the level, and then each array is loaded into the drop-down box corresponding to the highest level of the option it contains, that is, when the array contains only one option, the array is loaded to The level of the option corresponds to the drop-down box, but when the array contains two options, the array is loaded into the drop-down box corresponding to the level of the higher-level option.
  • FIG. 7 is a schematic diagram of the program module of the third embodiment of the system 20 for implementing the multi-level linkage pull-down box.
  • the linkage module 203 of the system 20 for implementing the multi-level linkage pull-down box may also be It is further divided into a judgment sub-module 2031, an option acquisition sub-module 2032, a screening sub-module 2033, a truncation sub-module 2034, and an output sub-module 2035.
  • the determining sub-module 2031 is configured to determine whether a change event occurs in the previous level drop-down box
  • the option obtaining sub-module 2032 is configured to obtain a previous-level drop-down box option pointed to by the change event in the previous level drop-down box;
  • the filtering sub-module 2033 is configured to filter, from an array loaded into a drop-down box of the current level, an array that includes the option of the previous-level drop-down box;
  • the intercepting sub-module 2034 is configured to intercept, by using a JS interception method, a current level drop-down box option included in the filtered array;
  • the output sub-module 2035 is configured to put the intercepted current level drop-down box option into a current level drop-down box.
  • the present application proposes a method for implementing a multi-level linkage drop-down box.
  • the method for implementing the multi-level linkage pull-down box includes the following steps:
  • the database stores at least one option group, and each group of the option groups includes several options arranged in a hierarchical relationship;
  • option linkage display according to the change event in the drop-down box of the previous level, the current level drop-down box is matched with the array containing the previous level drop-down box option, and then the JS intercept method is used to obtain the current level drop-down box option in the array. The current level drop-down box.
  • each group of option groups can contain the same number or a different number of options, so when the number of options in the option group is different, the number of layers in the hierarchical relationship sink and the number of included options are the most The number of options in the single group of the selected option group corresponds.
  • the system automatically loads the options in the selected group in the database into the corresponding drop-down box, specifically using the JS intercept method to load, first converting the option group into Array, the conversion process is shown in Figure 4, and then load each array into the corresponding drop-down box, that is, the first-level array [University] is loaded into the first-level drop-down box, and the second-level array [University College] is loaded to The second level drop-down box, and so on.
  • the user first clicks on the first-level drop-down box to display a number of universities (A university, B university, C university, etc.) for the user to select.
  • universities A university, B university, C university, etc.
  • the change event is triggered.
  • the university A is specifically selected;
  • the second level drop-down box will automatically match the array containing the first-level drop-down box options, specifically [A University, A1 Academy], [A University, A2 Academy], [A University, A3 Academy], etc.
  • the database construction process is as follows:
  • the loading of the option specifically includes the following steps:
  • the JS interception method sequentially intercepts the options in each option group, and converts the option group into a plurality of arrays arranged in a hierarchical relationship according to a conversion rule between the preset option group and the array;
  • a 1 , A 2 , ... A n represent a set of option groups
  • a 1 , A 2 , ... A n represent n of a set of option groups
  • the option, n is a positive integer, [A 1 ], [A 1 , A 2 ], ... [A n-1 , A n ] represent n arrays corresponding to n options.
  • step S31 determining whether a change event occurs in the previous level drop-down box, if step S32 is performed, if not, executing step S31;
  • the first value in the array is an array of A schools
  • the JS interception method sequentially intercepts the second value in the filtered second column array, that is, the second level drop-down box option, and puts the second level drop-down box option into the second level drop-down box to realize When the second level drop-down box is triggered, only the colleges related to the A school, that is, the linkage of the implementation options, are displayed in the second level drop-down box.
  • the present application is a computer readable storage medium having stored therein a system 20 implementing a multi-level linkage drop-down box, the system 20 implementing a multi-level linkage drop-down box executable by one or more processors
  • the method of implementing the multi-level linkage pull-down box or the operation of the electronic device is implemented.

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Abstract

本申请公开了一种实现多级联动下拉框的方法，属于页面数据处理技术领域。一种实现多级联动下拉框的方法，包括如下步骤：S1、构建数据库：所述数据库中存储有至少一个选项组别，每组所述选项组别中包含有按层级关系排列的若干选项；S2、加载选项：当下拉框页面被访问时，通过执行 JS截取方法将选项转化成数组，然后将各个数组加载至相应的下拉框中；S3、联动选项的显示：根据前一级下拉框中的 change 事件，给当前级下拉框匹配包含有前一级下拉框选项的数组，然后通过 JS 截取方法获取数组中的当前级下拉框选项放入所述当前级下拉框中。本申请可以根据用户提供的具有层级关系的选项，自动生成具备多级联动关系的下拉框组选项。

Description

实现多级联动下拉框的方法、电子装置及存储介质
本申请申明享有2017年11月24日递交的申请号为201711210184.4、名称为“实现多级联动下拉框的方法、电子装置及存储介质”的中国专利申请的优先权，该中国专利申请的整体内容以参考的方式结合在本申请中。
技术领域
本申请涉及页面数据处理技术领域，特别涉及一种实现多级联动下拉框的方法、电子装置及存储介质。
背景技术
随着互联网的发展，企业的营销活动由线下向线上转移，借助互联网和社交圈实现品牌营销、客户服务、获取客户等目标。
客户通过线上的营销活动页面参加活动时，经常需要填写一些个人信息，比如地址。为方便客户填写，提高客户体验，通常都尽可能使客户填写的文字降至最少，地址中常用的填写方式就是采用下拉框进行。但是，现在一般的多级联动插件基本都是关于全国省市区三级联动的，基本没有可以根据对应关系自动生成联动关系的插件，这样很难满足网页端想利用下拉框的联动让用户选择输入内容。而且，现有网页下拉框的加载太慢、数据要等几秒甚至十多秒才加载出来，客户就会失去耐心，有些还会直接关闭该网页，不再参加该营销活动。
客户体验很多时候代表着商机，给客户一个积极、高效的体验，他们会更乐于参加你的营销活动，且会提高对企业的评价。
因此，现在亟需一种自定义自动生成联动下拉框的插件，同时还能提高下拉框中内容的加载显示速度，以提高客户体验，使客户更乐于填写资料参加活动。
发明内容
本申请要解决的技术问题是为了克服现有技术中网页下拉框不能自定义生成且选项加载太慢的问题，提出了一种实现多级联动下拉框的方法、电子装置及存储介质，可以根据用户提供的关联关系，自动生成具备多级联动关系的下拉框组选项，且加载显示速度快。
本申请是通过下述技术方案来解决上述技术问题：
一种实现多级联动下拉框的方法，包括如下步骤：
S1、构建数据库：所述数据库中存储有至少一个选项组别，每组所述选项组别中包含有按层级关系排列的若干选项；
S2、加载选项：当下拉框页面被访问时，通过执行JS截取方法将选项组别转化成数组，然后将各个数组加载至相应的下拉框中；
S3、选项显示联动：根据前一级下拉框中的change事件，给当前级下拉框匹配包含有前一级下拉框选项的数组，然后通过JS截取方法获取数组中的当前级下拉框选项放入所述当前级下拉框中。
一种电子装置，包括存储器和处理器，所述存储器上存储有可被所述处理器执行的实现多级联动下拉框的系统，所述实现多级联动下拉框的系统包括：
数据库，所述数据库中存储有至少一个选项组别，每组所述选项组别中包含有按层级关系排列的若干选项；
加载模块，用于在下拉框页面被访问时，通过执行JS截取方法将选项组别转化成数组，然后将各个数组加载至相应的下拉框中；
联动模块，用于根据前一级下拉框中的change事件，给当前级下拉框匹配包含有前一级下拉框选项的数组，然后通过JS截取方法获取数组中的当前级下拉框选项放入所述当前级下拉框中。
一种计算机可读存储介质，所述计算机可读存储介质内存储有实现多级 联动下拉框的系统，所述实现多级联动下拉框的系统可被至少一个处理器所执行，以实现以下步骤：
S1、构建数据库：所述数据库中存储有至少一个选项组别，每组所述选项组别中包含有按层级关系排列的若干选项；
S2、加载选项：当下拉框页面被访问时，通过执行JS截取方法将选项组别转化成数组，然后将各个数组加载至相应的下拉框中；
S3、选项联动显示：根据前一级下拉框中的change事件，给当前级下拉框匹配包含有前一级下拉框选项的数组，然后通过JS截取方法获取数组中的当前级下拉框选项放入所述当前级下拉框中。
本申请的积极进步效果在于：本申请可以根据用户提供的具有层级关系的选项，自动生成具备多级联动关系的下拉框组选项，且下拉框组选项在网页被访问时一次性加载至各级下拉框中，选项的联动无需查询后台数据库，显示速度快。
附图说明
图1示出了本申请电子装置一实施例的硬件架构示意图；
图2示出了本申请电子装置中实现多级联动下拉框的系统第一实施例的程序模块示意图；
图3示出了本申请电子装置中实现多级联动下拉框的系统第一实施例的数据库中保存的选项组别的示意图；
图4示出了本申请电子装置中实现多级联动下拉框的系统第一实施例中选项组别和数组之间的转化示意图；
图5示出了本申请电子装置中实现多级联动下拉框的系统第一实施例所用的界面示意图；
图6示出了本申请电子装置中实现多级联动下拉框的系统第二实施例中加载模块的进一步程序模块示意图；
图7示出了本申请电子装置中实现多级联动下拉框的系统第二实施例中联动模块的进一步程序模块示意图；
图8示出了本申请实现多级联动下拉框的方法实施例一的流程图；
图9示出了本申请实现多级联动下拉框的方法实施例二中数据库的构建流程图；
图10示出了本申请实现多级联动下拉框的方法实施例三中加载选项的流程图；
图11示出了本申请实现多级联动下拉框的方法实施例四中选项联动的流程图。
具体实施方式
下面通过实施例的方式进一步说明本申请，但并不因此将本申请限制在所述的实施例范围之中。
首先，本申请提出了一种电子装置。
参阅图1所示，是本申请电子装置一实施例的硬件架构示意图。本实施例中，所述电子装置2是一种能够按照事先设定或者存储的指令，自动进行数值计算和/或信息处理的设备。例如，可以是智能手机、平板电脑、笔记本电脑、台式计算机、机架式服务器、刀片式服务器、塔式服务器或机柜式服务器(包括独立的服务器，或者多个服务器所组成的服务器集群)等。如图所示，所述电子装置2至少包括，但不限于，可通过系统总线相互通信连接存储器21、处理器22、网络接口23、以及实现多级联动下拉框的系统20。其中：
所述存储器21至少包括一种类型的计算机可读存储介质，所述可读存储介质包括闪存、硬盘、多媒体卡、卡型存储器(例如，SD或DX存储器等)、随机访问存储器(RAM)、静态随机访问存储器(SRAM)、只读存储 器(ROM)、电可擦除可编程只读存储器(EEPROM)、可编程只读存储器(PROM)、磁性存储器、磁盘、光盘等。在一些实施例中，所述存储器21可以是所述电子装置2的内部存储单元，例如该电子装置2的硬盘或内存。在另一些实施例中，所述存储器21也可以是所述电子装置2的外部存储设备，例如该电子装置2上配备的插接式硬盘，智能存储卡(Smart Media Card，SMC)，安全数字(Secure Digital，SD)卡，闪存卡(Flash Card)等。当然，所述存储器21还可以既包括所述电子装置2的内部存储单元也包括其外部存储设备。本实施例中，所述存储器21通常用于存储安装于所述电子装置2的操作系统和各类应用软件，例如所述实现多级联动下拉框的系统20的程序代码等。此外，所述存储器21还可以用于暂时地存储已经输出或者将要输出的各类数据。
所述处理器22在一些实施例中可以是中央处理器(Central Processing Unit，CPU)、控制器、微控制器、微处理器、或其他数据处理芯片。该处理器22通常用于控制所述电子装置2的总体操作，例如执行与所述电子装置2进行数据交互或者通信相关的控制和处理等。本实施例中，所述处理器22用于运行所述存储器21中存储的程序代码或者处理数据，例如运行所述的实现多级联动下拉框的系统20等。
所述网络接口23可包括无线网络接口或有线网络接口，该网络接口23通常用于在所述电子装置2与其他电子装置之间建立通信连接。例如，所述网络接口23用于通过网络将所述电子装置2与外部终端相连，在所述电子装置2与外部终端之间的建立数据传输通道和通信连接等。所述网络可以是企业内部网(Intranet)、互联网(Internet)、全球移动通讯系统(Global System of Mobile communication，GSM)、宽带码分多址(Wideband Code Division Multiple Access，WCDMA)、4G网络、5G网络、蓝牙(Bluetooth)、Wi-Fi等无线或有线网络。
需要指出的是，图1仅示出了具有组件21-23的电子装置2，但是应理 解的是，并不要求实施所有示出的组件，可以替代的实施更多或者更少的组件。
在本实施例中，存储于存储器21中的所述实现多级联动下拉框的系统20可以被分割为一个或者多个程序模块，所述一个或者多个程序模块被存储于存储器21中，并可由一个或多个处理器(本实施例为处理器22)所执行，以完成本申请。
例如，图2示出了所述实现多级联动下拉框的系统20第一实施例的程序模块示意图，该实施例中，所述实现多级联动下拉框的系统20可以被分割为数据库201、加载模块202和联动模块203。其中，本申请所称的程序模块是指能够完成特定功能的一系列计算机程序指令段。以下描述将具体介绍所述程序模块201-203的具体功能。
所述数据库201，存储有至少一个选项组别，每组所述选项组别中包含有按层级关系排列的若干选项；
所述加载模块202，用于在下拉框页面被访问时，通过执行JS截取方法将选项组别转化成数组，然后将各个数组加载至相应的下拉框中；
这里所述JS截取方法是指采用一种常用的脚本工具JAVASCRIPT截取字符串，常用的截取字符串的函数可以是substr(start，length)，也可以是substring(start，stop)；其中start是指截取字符串的开始位置，length是指从截取字符串开始位置要截取的长度，stop是指截取字符串的停止位置(因为js下标从0开始，停止位置实际为stop-1)。假设要截取“abcde”中的“bcd”，这里b的位置是2，d的位置是4，那么可以通过代码test.substr(2，3)或者代码test.substring(2，5)来实现。
所述联动模块203，用于根据前一级下拉框中的change事件，给当前级下拉框匹配包含有前一级下拉框选项的数组，然后通过JS截取方法获取数组中的当前级下拉框选项放入所述当前级下拉框中。
这里所述change事件是指发生了下拉框中的某个选项被选中的事件。
下面以使用本系统自动生成“学校-学院-专业”三级联动下拉框为例具体说明：
1、将选项按层级关系整理好，所述层级关系可以类似“一级二级三级”这种类型格式的关系(根据需要可以划分成更过层级)，本例中具体为“学校学院专业”，可以将选项具体整理成如图3所示的若干组选项组别的格式；整理好的若干组选项组别预先存储在系统后台的数据库中。
2、当用户访问具有下拉框的页面时，系统会自动将数据库中的选项自动对应加载到对应的下拉框中，具体采用JS截取方法进行加载，首先将选项组别转化成数组，转化过程如图4所示，然后将各个数组加载至相应的下拉框中，即第一级的数组[大学]加载至首级下拉框中，第二级的数组[大学，学院]加载至第二级下拉框中，第三级的数组[学院，专业]加载至第三级下拉框中，如果还有下一级的数组，则以此类推进行加载。
3、用户首先点击首级下拉框，显示若干大学(A大学、B大学、C大学等)供用户选择，当用户选择了某一所大学，即触发change事件，这里假设具体选择了A大学；然后第二级下拉框会自动匹配包含有首级下拉框选项的数组，具体为[A大学，A1学院]、[A大学，A2学院]、[A大学，A3学院]等若干包含有A大学若干数组，在通过JS截取方法截取前述若干数组中的学院选项放入到第二级下拉框中；当用户点击第二级下拉框时，只会显示若干A大学下设的学院，具体为A1学院、A2学院、A3学院等(如图5所示)。
又例如，图6示出了所述实现多级联动下拉框的系统20第二实施例的程序模块示意图，该实施例中，所述实现多级联动下拉框的系统20的加载模块202还可以被进一步分割为调用子模块2021、转化子模块2022和加载子模块2023。
所述调用子模块2021，用于当下拉框页面被访问时，调取数据库中存储的选项组别；
所述转化子模块2022，用于通过JS截取方法依次截取选项组别中的各选项，并按预设的选项组别与数组之间的转化规则将所述选项组别转化成按层级关系排列的若干数组；
所述加载子模块2023，用于将各数组加载到对应的下拉框中。
接上例，在用户访问带下拉框的页面时，系统会自动调取数据库中存储的选项组别，然后通过JS截取方法，依次截取各选项组别中的选项，选项的截取后，根据该选项的层级转化为对应该层级的数组的值，然后将各数组加载至对应其所包含的选项的最高层级所对应的下拉框中，即当数组中只包含一个选项，则将该数组加载至该选项的层级对应的下拉框中，但当数组中包含有二个选项时，将该数组加载至其中层级较高的选项的层级对应的下拉框中。
再例如，图7示出了所述实现多级联动下拉框的系统20第三实施例的程序模块示意图，该实施例中，所述实现多级联动下拉框的系统20的联动模块203还可以被进一步分割为判断子模块2031、选项获取子模块2032、筛选子模块2033、截取子模块2034和输出子模块2035。
所述判断子模块2031，用于判断前一级下拉框是否发生change事件；
所述选项获取子模块2032，用于获取前一级下拉框中所述change事件所指向的前一级下拉框选项；
所述筛选子模块2033，用于从加载至当前级下拉框中的数组中筛选出包含有所述前一级下拉框选项的数组；
所述截取子模块2034，用于通过JS截取方法截取筛选出的数组中所包含的当前级下拉框选项；
所述输出子模块2035，用于将截取的所述当前级下拉框选项放入当前级 下拉框中示。
其次，本申请提出一种实现多级联动下拉框的方法。
在实施例一中，如图8所示，所述的实现多级联动下拉框的方法包括如下步骤：
S1、构建数据库：所述数据库中存储有至少一个选项组别，每组所述选项组别中包含有按层级关系排列的若干选项；
S2、加载选项：当下拉框页面被访问时，通过执行JS截取方法将选项组别转化成数组，然后将各个数组加载至相应的下拉框中；
S3、选项联动显示：根据前一级下拉框中的change事件，给当前级下拉框匹配包含有前一级下拉框选项的数组，然后通过JS截取方法获取数组中的当前级下拉框选项放入所述当前级下拉框中。
需要注意的是，每组选项组别中可包含有相同数量或者不同数量的选项，因此，当选项组别中选项数量不同时，所述层级关系汇中层级的层数与包含有选项数量最多的单组所述选项组别中的选项数量相对应。
下面以创建关于“学校-学院-专业”的三级联动下拉框为例做具体说明：
1、将学校、学院和专业按“一级二级三级”这种层级类型格式的关系进行整理，学校对应的层级为一级，学院对应的层级二级、专业对应的层级三级，整理后的选项组别如图3所示，然后将整理后的选项组别保存在数据库中。
2、一旦有用户访问具有下拉框的页面时，系统自动将数据库中的选择组别中的选项自动对应加载到对应的下拉框中，具体采用JS截取方法进行加载，首先将选项组别转化成数组，转化过程如图4所示，然后将各个数组加载至相应的下拉框中，即第一级的数组[大学]加载至首级下拉框中，第二级的数组[大学学院]加载至第二级下拉框，以此类推。
3、用户首先点击首级下拉框，显示若干大学(A大学、B大学、C大 学等)供用户选择，当用户选择了某一所大学，即触发change事件，这里假设具体选择了A大学；然后第二级下拉框会自动匹配包含有首级下拉框选项的数组，具体为[A大学，A1学院]、[A大学，A2学院]、[A大学，A3学院]等若干包含有A大学若干数组，在通过JS截取方法截取前述若干数组中的学院选项放入到第二级下拉框中；当用户点击第二级下拉框时，只会显示若干A大学下设的学院，具体为A1学院、A2学院、A3学院等(如图5所示)。
在实施例二中，基于实施例一的基础上，如图9所示，数据库的构建过程具体如下：
S11、按从高到低的层级关系将每个选项组别中的选项分别进行排序；
S12、在各个选项组别之间添加相同的组别分隔符；
S13、以选项组别为单位，在各个选项之间添加相同的选项分隔符；
S14、将各选项、组别分隔符和选项分隔符保存至数据库的相应字段中。
接上例，如图3所示，所有选项按学校-学院-专业的格式进行排序，图2中，各个组别之间次用“回车”作为组别分隔符，而同组别的各选项之间采用“空格”作为选项分隔符，整理好之后，可以一次性导入到数据库中，自动保存至数据库的相应字段中，以便后续加载时采用JS截取方法获取。
在实施例三中，基于实施例二的基础上，如图10所示，选项的加载具体包括以下步骤：
S21、当下拉框页面被访问时，调取数据库中存储的选项组别；
S22、通过JS截取方法，依次截取各个选项组别中的选项，按预设的选项组别与数组之间的转化规则将所述选项组别转化成按层级关系排列的若干数组；
S23、将各数组加载到对应的下拉框中。
所述选项组别与数组之间的转化规则如下：
{A 1、A 2、......A n}＝[A 1]，[A 1，A 2]，......[A n-1，A n]；
其中，{A 1、A 2、......A n}表示一组选项组别，A 1、A 2、......A n表示一组选项组别中包含的n个选项，n为正整数，[A 1]，[A 1，A 2]，......[A n-1，A n]表示与n个选项相对应的n个数组。
接上例，以在三级联动下拉框中加载按“学校-学院-专业”格式整理的选项为例做具体说明：
1、一旦下拉框页面被访问，页面加载时自动调取数据库中存储的选项组别；
2、按如图3所示的选项组别的顺序，依次截取各个选项组别中选项转化成数组，如图4所示，左侧是选项组别，右侧是与之对应的转化后的数组；
3、将数组加载到对应的下拉框，即将图4中所示的第一列数组加载到第一级下拉框中，第二列数组加载到第二级下拉框中，第三例数组加载到第三级下拉框中。
在实施例四中，基于实施例三的基础上，如图11所示，选项的联动具体通过以下步骤实现：
S31、判断前一级下拉框是否发生change事件，若是执行步骤S32，若否执行本步骤S31；
S32、获取前一级下拉框中所述change事件所指向的前一级下拉框选项；
S33、从加载至当前级下拉框中的数组中筛选出包含有所述前一级下拉框选项的数组；
S34、通过JS截取方法，截取筛选出的数组中所包含的当前级下拉框选项；
S35、将截取的所述当前级下拉框选项放入当前级下拉框中。
接上例，以在三级联动下拉框选择学校、学院、专业为例做具体说明：
1、点击第一级下拉框，即选择学校的下拉框，这里选择A学校(如图5所示)；
2、识别到第一级下拉框中选中的是A学校后，从加载在第二级下拉框中的数组中筛选出所有包含有A学校的数组，即筛选出图4所示的第二列数组中第一个值为A学校的数组；
3、通过JS截取方法依次截取筛选出的第二列数组中的第二个值，即第二级下拉框选项，将这些第二级下拉框选项放入第二级下拉框中，以实现当所述第二级下拉框被触发时，在该第二级下拉框仅会显示出这些与A学校相关的学院，即实现选项的联动。
以上仅说明了第一级下拉框和第二级下拉框之间的选项联动，之后第二级下拉框与第三级下拉框之间的选项联动同上，此处不再赘述。
此外，本申请一种计算机可读存储介质，该计算机可读存储介质内存储有实现多级联动下拉框的系统20，该实现多级联动下拉框的系统20可被一个或多个处理器执行时，实现上述实现多级联动下拉框的方法或电子装置的操作。
虽然以上描述了本申请的具体实施方式，但是本领域的技术人员应当理解，这仅是举例说明，本申请的保护范围是由所附权利要求书限定的。本领域的技术人员在不背离本申请的原理和实质的前提下，可以对这些实施方式做出多种变更或修改，但这些变更和修改均落入本申请的保护范围。

Claims (15)

  1. 一种实现多级联动下拉框的方法，其特征在于，包括如下步骤：
    S1、构建数据库：所述数据库中存储有至少一个选项组别，每组所述选项组别中包含有按层级关系排列的若干选项；
    S2、加载选项：当下拉框页面被访问时，通过执行JS截取方法将选项组别转化成数组，然后将各个数组加载至相应的下拉框中；
    S3、选项联动显示：根据前一级下拉框中的change事件，给当前级下拉框匹配包含有前一级下拉框选项的数组，然后通过JS截取方法获取数组中的当前级下拉框选项放入所述当前级下拉框中。
  2. 根据权利要求1所述的实现多级联动下拉框的方法，其特征在于，步骤S1具体包括以下分步骤：
    S11、按从高到低的层级关系将每个选项组别中的选项分别进行排序；
    S12、在各个选项组别之间添加相同的组别分隔符；
    S13、以选项组别为单位，在各个选项之间添加相同的选项分隔符；
    S14、将各选项、组别分隔符和选项分隔符保存至数据库的相应字段中。
  3. 根据权利要求2所述的实现多级联动下拉框的方法，其特征在于，每组所述选项组别中包含有相同数量或者不同数量的选项，所述层级关系中层级的层数与包含有选项数量最多的单组所述选项组别中的选项数量相对应。
  4. 根据权利要求2所述的实现多级联动下拉框的方法，其特征在于，步骤S2具体包括以下分步骤：
    S21、当下拉框页面被访问时，调取数据库中存储的选项组别；
    S22、通过JS截取方法，依次截取各个选项组别中的选项，按预设的选项组别与数组之间的转化规则将所述选项组别转化成按层级关系排列的若干数组；
    S23、将各数组加载到对应的下拉框中。
  5. 根据权利要求4所述的实现多级联动下拉框的方法，其特征在于，所述选项组别与数组之间的转化规则如下：
    {A 1、A 2、......A n}＝[A 1]，[A 1，A 2]，......[A n-1，A n]；
    其中，{A 1、A 2、......A n}表示一组选项组别，A 1、A 2、......A n表示一组选项组别中包含的n个选项，n为正整数，[A 1]，[A 1，A 2]，......[A n-1，A n]表示与n个选项相对应的n个数组。
  6. 根据权利要求5所述的实现多级联动下拉框的方法，其特征在于，步骤S3具体包括以下分步骤：
    S31、判断前一级下拉框是否发生change事件，若是执行步骤S32，若否执行本步骤S31；
    S32、获取前一级下拉框中所述change事件所指向的前一级下拉框选项；
    S33、从加载至当前级下拉框中的数组中筛选出包含有所述前一级下拉框选项的数组；
    S34、通过JS截取方法，截取筛选出的数组中所包含的当前级下拉框选项；
    S35、将截取的所述当前级下拉框选项放入当前级下拉框中。
  7. 一种电子装置，包括存储器和处理器，其特征在于，所述存储器上存储有可被所述处理器执行的实现多级联动下拉框的系统，所述实现多级联动下拉框的系统包括：
    数据库，所述数据库中存储有至少一个选项组别，每组所述选项组别中包含有按层级关系排列的若干选项；
    加载模块，用于在下拉框页面被访问时，通过执行JS截取方法将选项组别转化成数组，然后将各个数组加载至相应的下拉框中；
    联动模块，用于根据前一级下拉框中的change事件，给当前级下拉框匹配包含有前一级下拉框选项的数组，然后通过JS截取方法获取数组中的 当前级下拉框选项放入所述当前级下拉框中。
  8. 根据权利要求7所述的电子装置，其特征在于，所述加载模块具体包括：
    调用子模块，用于当下拉框页面被访问时，调取数据库中存储的选项组别；
    转化子模块，用于通过JS截取方法依次截取选项组别中的各选项，并按预设的选项组别与数组之间的转化规则将所述选项组别转化成按层级关系排列的若干数组；
    加载子模块，用于将各数组加载到对应的下拉框中。
  9. 根据权利要求7所述的电子装置，其特征在于，所述联动模块具体包括：
    判断子模块，用于判断前一级下拉框是否发生change事件；
    选项获取子模块，用于获取前一级下拉框中所述change事件所指向的前一级下拉框选项；
    筛选子模块，用于从加载至当前级下拉框中的数组中筛选出包含有所述前一级下拉框选项的数组；
    截取子模块，用于通过JS截取方法截取筛选出的数组中所包含的当前级下拉框选项；
    输出子模块，用于将截取的所述当前级下拉框选项放入当前级下拉框中示。
  10. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质内存储有实现多级联动下拉框的系统，所述实现多级联动下拉框的系统可被至少一个处理器所执行，以实现以下步骤：
    S1、构建数据库：所述数据库中存储有至少一个选项组别，每组所述选项组别中包含有按层级关系排列的若干选项；
    S2、加载选项：当下拉框页面被访问时，通过执行JS截取方法将选项 组别转化成数组，然后将各个数组加载至相应的下拉框中；
    S3、选项联动显示：根据前一级下拉框中的change事件，给当前级下拉框匹配包含有前一级下拉框选项的数组，然后通过JS截取方法获取数组中的当前级下拉框选项放入所述当前级下拉框中。
  11. 根据权利要求10所述的计算机可读存储介质，其特征在于，步骤S1具体包括以下分步骤：
    S11、按从高到低的层级关系将每个选项组别中的选项分别进行排序；
    S12、在各个选项组别之间添加相同的组别分隔符；
    S13、以选项组别为单位，在各个选项之间添加相同的选项分隔符；
    S14、将各选项、组别分隔符和选项分隔符保存至数据库的相应字段中。
  12. 根据权利要求11所述的计算机可读存储介质，其特征在于，每组所述选项组别中包含有相同数量或者不同数量的选项，所述层级关系中层级的层数与包含有选项数量最多的单组所述选项组别中的选项数量相对应。
  13. 根据权利要求11所述的计算机可读存储介质，其特征在于，步骤S2具体包括以下分步骤：
    S21、当下拉框页面被访问时，调取数据库中存储的选项组别；
    S22、通过JS截取方法，依次截取各个选项组别中的选项，按预设的选项组别与数组之间的转化规则将所述选项组别转化成按层级关系排列的若干数组；
    S23、将各数组加载到对应的下拉框中。
  14. 根据权利要求13所述的计算机可读存储介质，其特征在于，所述选项组别与数组之间的转化规则如下：
    {A 1、A 2、......A n}＝[A 1]，[A 1，A 2]，......[A n-1，A n]；
    其中，{A 1、A 2、......A n}表示一组选项组别，A 1、A 2、......A n表示一组选项组别中包含的n个选项，n为正整数，[A 1]，[A 1，A 2]，......[A n-1，A n]表示与n个选项相对应的n个数组。
  15. 根据权利要求14所述的计算机可读存储介质，其特征在于，步骤S3具体包括以下分步骤：
    S31、判断前一级下拉框是否发生change事件，若是执行步骤S32，若否执行本步骤S31；
    S32、获取前一级下拉框中所述change事件所指向的前一级下拉框选项；
    S33、从加载至当前级下拉框中的数组中筛选出包含有所述前一级下拉框选项的数组；
    S34、通过JS截取方法，截取筛选出的数组中所包含的当前级下拉框选项；
    S35、将截取的所述当前级下拉框选项放入当前级下拉框中。
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