Local Storage来记住登录名和密码
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
</head>
<body>
用户名：<input id="user" type="text">
<br>
密 码：<input id="pwd" type="password">
<br>
<input id="check" type="checkbox">记住用户名和密码
<br>
<button id="btn" type="">登录</button>
<button id="del" type="">删除storage</button>
<script type="text/javascript">
var u = window.localStorage.getItem('user');
var p = window.localStorage.getItem('pwd');
if(u){
user.value = u;
}
if(p){
pwd.value = p;
}
btn.onclick = function(){
if(check.checked){
localStorage.setItem('user',user.value);
localStorage.setItem('pwd',pwd.value);
}
}
del.onclick = function(){
localStorage.removeItem('user');
localStorage.removeItem('pwd');
}
</script>
</body>
</html>