abstract:<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>change DIV</title> <style type="text/css
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>change DIV</title> <style type="text/css"> #box{width: 100px;height: 100px;background: red;margin: 20px 80px;} </style> </head> <body> <!-- 用按钮控制div 高度 宽度 颜色 重置 隐藏 显示 --> <div id="box"></div> <input type="button" value="变高" name="" onclick="aa()"> <input type="button" value="变宽" name="" onclick="bb()"> <input type="button" value="变色" name="" onclick="cc()"> <input type="button" value="重置" name="" onclick="dd()"> <input type="button" value="隐藏" name="" onclick="ee()"> <input type="button" value="显示" name="" onclick="ff()"> <script type="text/javascript"> var box; window.onload=function(){ box=document.getElementById("box") } function aa(){ box.style.height="400px" //改变高度 } function bb(){ box.style.width="400px" //改变宽度 } function cc(){ box.style.background="pink" //改变颜色 } function dd(){ box.style.height="100px" box.style.width="100px" box.style.background="red" //重置 } function ee(){ box.style.display="none" } function ff(){ box.style.display="block" } </script> </body> </html>
Correcting teacher:天蓬老师Correction time:2019-04-08 09:47:38
Teacher's summary:以后养成好习惯, 每个input元素应该给name属性赋值,取一个有意义 的名称