【前端】js点击变红变绿

发布时间:2018-07-20 10:38:19

代码如下
1.html代码

        <div id="head">

                <div id="one"></div>

        </div>

2.css代码

        *{

            padding: 0px;

            margin:0px;

          }

        #head{

            position:relative;

            width: 200px;

            height: 200px;

            }

        #one{

            width: 200px;

            height: 200px;

            background-color: red;

            }

        #two{

            width: 200px;

            height: 200px;

            background-color: green;;

            }

3.js代码

        var head =document.getElementById('head');

        var one =document.getElementById('one');

        var two =document.getElementById('two');

        var i=0;

        one.onclick =function(){

            if (i==0) {

            one.style.background="green"

            i=1;

            }else{

            one.style.background="red"

            i=0;

            }

        }

  

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