docs: function compareDate(x, y) {
    var isAsc = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : true;
    var spC = arguments[3];
    var spC2 = arguments[4];
    var spV = arguments[5];
  
    var d = '1900-01-01';
    x = __WEBPACK_IMPORTED_MODULE_2__date__["parse"](x == null || x === '' ? d : x);
    y = __WEBPACK_IMPORTED_MODULE_2__date__["parse"](y == null || y === '' ? d : y);
    var z = x - y;
  
    spV = spV != null ? spV : -1;
    if (spC && !spC2) {
      //如有禁止排序标记则拍在最低位置
      return -1;
    } else if (!spC && spC2) {
      return 1;
    } else if (spC && spC2) {
      return 0;
    }
    return !isAsc ? z * -1 : z;
  }