<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
<script>
window.onload=function(){
/*页面打开，判断是否存储过用户名---*/
var uName=window.localStorage.getItem('userName');
var password=window.localStorage.getItem('password');
console.log(uName)
if(password != null){//说明之前存储过值，说明用户希望记住用户名
document.getElementById('password').value=password;
}
if(uName != null){//说明之前存储过值，说明用户希望记住用户名
document.getElementById('userName').value=uName;
}
/*点击登录时存储数据*/
document.getElementById("submit").onclick=function(){
var name=document.getElementById('userName').value;
var pass=document.getElementById('password').value;
/*判断用户是否选择记住用户名*/
var isRemenber=document.getElementById('isRemenber');
if(isRemenber.checked==true){
/*存储数据到localstorage*/
window.localStorage.setItem('userName',name);
window.localStorage.setItem('password',pass);
}
else{
window.localStorage.removeItem('userName');
window.localStorage.removeItem('password');
}
}
}
</script>
</head>
<body>
<form action="#">
<input type="userName" id="userName"/>
<input type="password" id="password"/>
<input type="checkbox" id="isRemenber" />
<input type="submit" value="submit" id="submit"/>
</form>
</body>
</html>
