search
Homephp教程php手册jQuery+PHP获取Select option 选择的Text和Value(附选择城市实例)

PHP代码:

[php]  

 

  •  

        所在城市  

       

             

             

             

             

         

  •  

  •  

    所在地区  

     

       

             

             

                 

             

         

     

  •  

     

    Jquery代码:

    [javascript] 

    $("select.city").change(function(){  

        var ccode = $(this).val();  

        $("select.area").hide();  

        if(ccode){  

            $("select.area[citycode="+ccode+"]").show();  

        }  

    });  

    var sltcity = $("select.city").val();  

    if(sltcity){  

         $("select.area[citycode="+sltcity+"]").show();  

    }  

     

    下面是详细的:

    jquery radio取值,checkbox取值,select取值,radio选中,checkbox选中,select选中,及其相关设置

     

    获取一组radio被选中项的值:var item = $('input[name=items][checked]').val();

    获取select被选中项的文本:var item = $("select[@name=items] option[@selected]").text();

    获取select被选中项的文本 :var item = $("select[name=items] option[selected]").text(); 或$("select[name=items]").find("option:selected").text();

    select下拉框的第二个元素为当前选中值:$('#select_id')[0].selectedIndex = 1;

    select下拉框value = 'val'的元素为当前选中项:$("select[name=items] option[value='val']").attr("selected","selected");

    radio单选组的第二个元素为当前选中项 :$('input[@name=items]').get(1).checked = true; 或$('input[name=items]').attr("checked", '1′);

    radio的value = 'val'的元素为当前选中项:$('input[name=items] [value='val']').attr("checked","checked");

     

    获取值:

    文本框,文本区域:$("#txt").attr("value");

    多选框checkbox:$("input[name='checkbox':checked]").each(function(){

    var val = $(this).val();

    });

    单选组radio: $("input[type=radio][checked]").val();

    下拉框select的value值: $('select').val();

    下拉框select选中的text 值:$("select").find("option:selected").text();

    控制表单元素:

    文本框,文本区域:$("#txt").attr("value","); //清空内容

                           $("#txt").attr("value",'11′); //填充内容

    多选框checkbox:

    checkbox的第二个元素被打勾:$("input[name=items]").get(1).checked = true; //打勾

                                               $("input[name=items]").get(1).checked = false; //不打勾

    checkbox的value='val'的元素前打勾:$("input[name=item][value='val']").attr("checked",true); 或$("input[name=item][value='val']").attr("checked","checked");

    if($("input[name=item][value='val']").attr('checked')==true) //判断是否已经打勾

    单选组radio: $("input[type=radio]").attr("checked",'2′);//设置value=2的项目为当前选中项

    下拉框select: $("#sel").attr("value",'-sel3′);//设置value=-sel3的项目为当前选中项

    $("").appendTo("#sel")//添加下拉框的option

    $("#sel").empty();//清空下拉框

     

    jQuery获取Radio选择的Value值

     

    代码

    $("input[name='radio_name'][checked]").val(); //选择被选中Radio的Value值

    $("#text_id").focus(function(){//code...}); //事件 当对象text_id获取焦点时触发

    $("#text_id").blur(function(){//code...}); //事件 当对象text_id失去焦点时触发

    $("#text_id").select(); //使文本框的Vlaue值成选中状态

    $("input[name='radio_name'][value='要选中Radio的Value值'").

    attr("checked",true); //根据Value值设置Radio为选中状态

    jQuery获取CheckBox选择的Value值

    $("input[name='checkbox_name'][checked]"); //选择被选中CheckBox元素的集合 如果你想得到Value值你需要遍历这个集合

    $($("input[name='checkbox_name'][checked]")).

    each(function(){arrChk+=this.value + ',';});//遍历被选中CheckBox元素的集合 得到Value值

    $("#checkbox_id").attr("checked"); //获取一个CheckBox的状态(有没有被选中,返回true/false)

    $("#checkbox_id").attr("checked",true); //设置一个CheckBox的状态为选中(checked=true)

    $("#checkbox_id").attr("checked",false); //设置一个CheckBox的状态为不选中(checked=false)

    $("input[name='checkbox_name']").attr

    ("checked",$("#checkbox_id").attr("checked"));//根据3,4,5条,你可以分析分析这句代码的意思

    $("#text_id").val().split(","); //将Text的Value值以','分隔 返回一个数组

     

     jquery1.3.2

    ISDARK : $("input[@type=radio][name=ISDARK][checked]").val()

     

    $("input[name=radioname][value=radio值]").attr("checked","checked");

     

    Statement
    The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

    Hot AI Tools

    Undresser.AI Undress

    Undresser.AI Undress

    AI-powered app for creating realistic nude photos

    AI Clothes Remover

    AI Clothes Remover

    Online AI tool for removing clothes from photos.

    Undress AI Tool

    Undress AI Tool

    Undress images for free

    Clothoff.io

    Clothoff.io

    AI clothes remover

    AI Hentai Generator

    AI Hentai Generator

    Generate AI Hentai for free.

    Hot Article

    R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
    3 weeks agoBy尊渡假赌尊渡假赌尊渡假赌
    R.E.P.O. Best Graphic Settings
    3 weeks agoBy尊渡假赌尊渡假赌尊渡假赌
    R.E.P.O. How to Fix Audio if You Can't Hear Anyone
    3 weeks agoBy尊渡假赌尊渡假赌尊渡假赌
    WWE 2K25: How To Unlock Everything In MyRise
    3 weeks agoBy尊渡假赌尊渡假赌尊渡假赌

    Hot Tools

    MantisBT

    MantisBT

    Mantis is an easy-to-deploy web-based defect tracking tool designed to aid in product defect tracking. It requires PHP, MySQL and a web server. Check out our demo and hosting services.

    ZendStudio 13.5.1 Mac

    ZendStudio 13.5.1 Mac

    Powerful PHP integrated development environment

    SublimeText3 Chinese version

    SublimeText3 Chinese version

    Chinese version, very easy to use

    PhpStorm Mac version

    PhpStorm Mac version

    The latest (2018.2.1) professional PHP integrated development tool

    SecLists

    SecLists

    SecLists is the ultimate security tester's companion. It is a collection of various types of lists that are frequently used during security assessments, all in one place. SecLists helps make security testing more efficient and productive by conveniently providing all the lists a security tester might need. List types include usernames, passwords, URLs, fuzzing payloads, sensitive data patterns, web shells, and more. The tester can simply pull this repository onto a new test machine and he will have access to every type of list he needs.