jquery事件

一添加点击事件

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<script src="../jquery-3.3.1.min.js"></script>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
</head>

<body>
    <input  type="button" class="cc" value="ff"/>
    <input  type="button" class="cc" value="gg"/>
    <input  type="button" class="cc" value="ii"/>
    <input  type="button" name="cc" value="jj"/>
</body>
<script type="text/javascript">
    var a = $("#aa");
    var b = $(".bb");
    var c = $(".cc");
    $("[name='cc']").click(function(){
        alert("nihao"); //单个添加单击事件
    })
    $(".cc").on("click",function(){
        alert($(this).val());//谁触发。this就代表谁
             
    })//多个元素单击加事件
</script>
</html>

二、挂事件

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<script src="../jquery-3.3.1.min.js"></script>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
</head>


    <input  type="button" class="cc" value="挂事件" id="a"/>
    <input  type="button" class="cc" value="测试事件" id="b"/>
    <input  type="button" class="cc" value="移除事件" id="c"/>
    
</body>
<script type="text/javascript">
    var a = $("#aa");
    var b = $(".bb");
    var c = $(".cc");
    $("#a").click(function(){
        $("#b").bind("click",function(){
            alert("测试事件");
        }) 
    })//挂事件
</script>
</html>

显示:

三 移除事件

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<script src="../jquery-3.3.1.min.js"></script>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
</head>
<body>
    <input  type="button" class="cc" value="挂事件" id="a"/>
    <input  type="button" class="cc" value="测试事件" id="b"/>
    <input  type="button" class="cc" value="移除事件" id="c"/>
  
</body>
<script type="text/javascript">
    $("#a").click(function(){
        $("#b").bind("click",function(){
            alert("测试实验");
        });
    });//挂事件
    $("#c").click(function(){
        $("#b").unbind("click");   
    });//移除事件
</script>
</html>
posted @ 2018-01-26 16:08  小孩坏坏  阅读(98)  评论(0编辑  收藏  举报