1. 程式人生 > >JS 模擬登陸框動態顯示密碼功能

JS 模擬登陸框動態顯示密碼功能

執行成果如下,

    

程式碼如下,

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Dom物件</title>
    <script>
        window.onload=function(){
            var display=document.getElementById("display");
            
            display.onchange=function(){
                var pwd=document.getElementById("pwd");
                
                if(display.checked){
                    pwd.type="text";
                }else{
                    //pwd.type="password";
                    pwd.setAttribute("type","password");
                }
            }
        }

    </script>
</head>
<body>

    <form>
        使用者名稱<input type="text" name="name" id="name">
        <br>
        密碼<input type="password" name="pwd" id="pwd" checked="true">
        <br>
        <input type="checkbox" name="display" id="display">顯示密碼
    </form>
</body>
</html>