VUE3)操作cookie

//封装获取cookie

function getCookie(name) {
 var arr, reg = new RegExp("(^| )" + name + "=([^;]*)(;|$)");
 if (arr = document.cookie.match(reg))
  return (arr[2]);
 else
  return null;
}

　　

//封装设置cookie

function setCookie (c_name, value, expiredays) {
 var exdate = new Date();
 exdate.setDate(exdate.getDate() + expiredays);
 document.cookie = c_name + "=" + escape(value) + ((expiredays == null) ? "" : ";expires=" + exdate.toGMTString());
};

//封装删除cookie 

function delCookie (name) {
 var exp = new Date();
 exp.setTime(exp.getTime() - 1);
 var cval = getCookie(name);
 if (cval != null)
  document.cookie = name + "=" + cval + ";expires=" + exp.toGMTString();
};