js怎么写Cookie

html:

<div id="dcookie">
        <input type="text"  id="txtCookie"/>
        <input type="button" value="测试cookie" id="dtextc" onclick="TextCookie()" />
        <input type="button" value="删除cookie"  onclick="DelCookie()"/>
</div>

 

js:

$(function () {
    var c = $.cookie("mycookie");
    if (c == null) {
        alert("没有cookie");
    }
    else {
        alert(c);
    }
}
//设置Cookie
function TextCookie() {
    var user = $.trim($("#txtCookie").val());
    $.cookie("mycookie", user, {
        expires: 1,
        path: "/"
    });
}
//删除Cookie
function DelCookie() {
    $.cookie("mycookie", null, {
        path: "/"
    });
}