定义函数给出任意一天是星期几答:输入年月日,输出 星期几。调用 int YMD_2_WeekDay(int Y, int M, int D)include <stdio.h> include char *WeekDayName[]={" ","Mon","Tue","Wen","Thu","Fri","Sat","Sun"};int YMD_2_JD(int Y, int M, int D){ const short MonthDay[]={0,31,28,31,30,31,30,3...
C#计算某年某月的某一天是星期几答:using System;public class DiffTime { public static void Main() { DateTime d1 = new DateTime(2000,1,3,0,0,0); DateTime d2 = new DateTime(2009,7,9,0,0,0); TimeSpan ts = d2 - d1; Console.WriteLine(ts.TotalDays); } }试试看对不对 ...