获取浏览器cookie

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function getCookieSunyi(name) {
  var strCookie = document.cookie;
  var arrCookie = strCookie.split("; ");
  for (var i = 0; i < arrCookie.length; i++) {
    var arr = arrCookie[i].split("=");
    if (arr[0] == name) {
      return arr[1];
    }
  }
  return "";
}
使用：p = decodeURIComponent(getCookieSunyi('login_user_info_key')) || "";