cookie的设置读取

 <script>
// 设置cookie值哈
let username = '我是cookie'
document.cookie = "name=" + username;
document.cookie = "key1=" + '我是cook1';
document.cookie = "key2=" + '我是cook2';

// 读取cookie值
console.log(document.cookie); //这样是获取所有的cookie值~  name=我是cookie; key1=我是cook1; key2=我是cook2
console.log(document.cookie.split(";")[0].split("=")[1]); // 获取第一个 key中的值