#include<stdio.h>
void main()
{
    int year,days=0,sum,i,day=0,j;
    printf("输入年份：");
    scanf("%d",&year);
    if(year>=2000){
        for(i=2000;i<year;i++){
            if(i%4==0&&i%100!=0||i%400==0)
                days+=366;
            else days+=365;
        }
        sum=(days%7+6)%7;
    }
    else if(year<2000){
        for(i=1999;i>=year;i--){
            if(i%4==0&&i%100!=0||i%400==0)
                days+=366;
            else days+=365;
        }
        sum=(6-days%7)%7;;
    }
    printf("===============================\n");
    printf("%4d 年日历\n",year);
    printf("===============================\n");
    for(i=1;i<=12;i++){
        printf("%d月\n",i);
        printf("  Su  Mo  Tu  We  Th  Fr  Sa\n");
        switch(i){
           case 1:case 3:case 5:case 7:case 8:case 10:case 12: day=31; break;
           case 2: {
               if(year%4==0&&year%100!=0||year%400==0)
                   day=28;
               else day=29;
                   } break;
           case 4:case 6:case 9:case 11: day=30; break;
        }
        for(j=1;j<=sum;j++)
            printf("    ");
        for(j=1;j<=day;j++){
            printf("%4d",j);
            if((j+sum)%7==0)
                printf("\n");
        }
        sum=(sum+day)%7;
        printf("\n");
    }
}


这个万年历只能竖着打，那个高手能指点一下改成两个月打一行

我也说不清就是根据给定的2000年1月1日是星期六然推出来的

哈哈哥们真强
我试了试可以
谢了啊