注意：此工具是个鸡肋的存在，没有多大意义。（浏览器可以直接操作，类似于LocalStorage）

/**

* description: CooKie

* create_time: 2019-01-03

* message: 不接受任何私下吐槽，请当面沟通协调

*/

class Cookie {

  constructor() {

    this.date= new Date();

  }

  // 存入COOKIE

  set (name, value, day) {

    day= day|| 7;

    const valueType = typeof value;

    value= (valueType == 'string')? JSON.stringify(value):value;

    this.date.setTime(this.date.getTime() + 24 * 60 * 60 * 1000 * day);

    window.document.cookie= name+ '=' + value+ ';path=/;expires=' + this.date.toGMTString();

  }

  // 取出COOKIE

  get (name) {

    let v = window.document.cookie.match('(^|;) ?' + name+ '=([^;]*)(;|$)');

    return v ? v[2] : null

  }

  // 删除COOKIE

  del (name) {

    this.date.setTime(this.date.getTime() - 1)

    let val = this.get(name)

    if (val != null) {

      document.cookie= name+ '=' + val + ';expires=' + this.date.toGMTString();

    }

}

}

export default Cookie

用法：
const Cookie = new cookie();
Cookie.set('A','TEST_TOKEN_Ra')