#include <stdio.h>

int CaculateWeekDay(int year,int month,int day)
{
    int week;
    if(month==1||month==2)
    {
        month+=12;
        year--;
    }
    week=(day+2*month+3*(month+1)/5+year+year/4-year/100+year/400)%7+day;
    return week;
}
   
   
int date[12][6][7];
int day_tbl[][12]={{31,28,31,30,31,30,31,31,30,31,30,31},{31,29,31,30,31,30,31,31,30,31,30,31}};
main()
{
    int FirstDay,i,j,k,wd=0,day,leap;
    int Year;
    char title[]="SUN MON TUE WED THU FRI SAT";
        
    printf("Please input the year whose calendar you want to know: ");
    scanf("%d",&Year);
        
    FirstDay=CaculateWeekDay(Year,1,1);     
     leap = (Year % 4 == 0) && (Year % 100) || (Year % 400==0);  
 
    for(i=0;i<12;i++)
        for(j=0;j<6;j++)
            for(k=0;k<7;k++)
                date[i][j][k]=0;      
            
    for(i=0;i<12;i++)
    {
        wd = 0;
        for(day=1;day <= day_tbl[leap][i];day++)
        {   
            date[i][wd][FirstDay] = day;
            FirstDay = ++FirstDay % 7;
            if(FirstDay == 0)
                wd++;   
        }
    }

   
    for(i=0;i<12;i++)
    {   
        for(k=0,wd=0;k<7;k++)
            wd+=date[i][5][k];
            wd = wd ? 6 : 5;         
            printf(" %s\n",title);
            for(j=0;j<wd;j++)
            {        
                for(k=0;k<7;k++)
                    if(date[i][j][k])
                        printf("%4d",date[i][j][k]);
                    else printf("    ");
                    printf("\n");
            }
    }
    puts("\n press any key to quit....");
    getchar();
}

这是我编写的万年历  输出时是一次输出一年  需要改成一次输出一排（两个月为一排） 按回车后再显示下一排 直到显示完12个月
如：  1月 2月

      3月 4月  
应该是在第六排修改 求解~~~