jq cookie

//$.cookie("xx");//读取xx的值
//$.cookie("xx","123");//设置xx的值为123
//$.cookie("xx","123",{expires:7})//设置xx的值为123并保存7天 有效期为7天
//$.cookie("xx","123",{expires:7,path:"/"})

<script src="js/jquery.js"></script>
<script src="js/jquery.cookie.js"></script>

<input type="text" placeholder="用户名" id="txtName">
<input type="password" placeholder="密码" id="txtPwd">
<input type="checkbox" id="chkRememberPwd">记住密码
<button>登录</button>

<script>
$(function () {
    $("#txtName").val($.cookie("name"));
    $("#txtPwd").val($.cookie("pwd"));
    if($.cookie("chkRememberPwd") == ""){
        $("#chkRememberPwd").prop("checked","checked");
    }else{
        $("#chkRememberPwd").prop("checked","");
    }
    $("button").click(function(){
       var name = $("#txtName").val();
       var pwd = $("#txtPwd").val();

       if($("#chkRememberPwd").is(":checked")){
           console.log("");
           $.cookie("name",name);
           $.cookie("pwd",pwd);
           $.cookie("chkRememberPwd","");
       }else{
           $.cookie("name","");
           $.cookie("pwd","");
           $.cookie("chkRememberPwd","");
       }
    });
})

</script>