public static void MergeSort(this IList self, Func <object, object, bool> compareFunc)
{
SortUtil.MergeSort(self, compareFunc);
}
//如：list.MergeSort((a, b)=>return a.count <= b.count)
//则是将count由小到大排序，注意比较大小时不要漏掉等于号，否则相等时也进行排序，则排序不稳定
public static void MergeSort <T>(this IList <T> self, Func <T, T, bool> compareFunc)
{
SortUtil.MergeSort(self, compareFunc);
}
