1. function compare(property1: any, property2: any) {
    2.   return function (a: any, b: any): any {
    3.     let value1 = a[property1];
    4.     let value2 = b[property1];
    5.     if (value1 == value2) {
    6.        //如果第一个参数的值相等，则排序第二个参数
    7.       let value3 = a[property2];
    8.       let value4 = b[property2];
    9.       return value3 - value4;
    10.     } else {
    11.       return value1 - value2; //如果第一个参数的值不相等，则排序第一个参数
    12.     }
    13.   };
    14. }
    15.       arr = arr.sort(compare('id', 'startoffset'));