JavaScript_之复选框

UI界面样式

HTML界面实现代码


<!DOCTYPE html>:
<html>
<head>
<srcipt type="text/javascript" src="index5.js"></srcipt>
<title>ShowCheckBox</title>
</head>
<body>
//先写一个表单
<form>
 <input type="checkbox" name="insterest" /><label>游泳</label>
    <input type="checkbox" name="insterest" /><label>吸猫</label>
    <input type="checkbox" name="insterest" /><label>打拳</label>
    <input type="checkbox" name="insterest" /><label>敲代码</label>
    <input type="button" value="全选" onclick="checkInterset()"/>
    <input type="button" value="反选" onclick="checkInterset1()"/>
</form>
</body>
</html>
复制代码

JavaScript代码实现

var flag=true;
function checkInterest(){
    var interset=document.getElementsByName("insterest");
  for(i=0;i<interset.length;i++){
      interset[i].checked=flag;
  }
    flag=!flag;
}
复制代码

转载于:https://juejin.im/post/5cff3cf85188254dd63c1744

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转载自blog.csdn.net/weixin_34124651/article/details/91437243