要求编写程序，输出任意年份的日历，两列排列


#include <stdio.h>
void main ()
{
    int y,num,s1,s2,w1,w2,w,d1,d2,m1,m2;
    printf ("请输入要查询的年份：");
    scanf ("%d",&y);
    w=(y-1)*365+(y-1)/4-(y-1)/100+(y-1)/400+1;
    s1=s2=w1=w2=w%7;
    for(num=1;num<=12;num++)
    {
        printf("                  %d月",num++);
        printf("                                       %d月\n\n",num);
        printf("   日   一   二   三   四   五   六          日   一   二   三   四   五   六\n");
        switch (--num)//一月份的天数
        {
        case 1: m1=31;break;
        case 3: m1=31;break;
        case 5: m1=31;break;
        case 7: m1=31;break;
        case 9: m1=30;break;
        case 11: m1=30;break;
        }
        switch (++num)//二月份的天数
        {
        case 2: m2=28;
            if ((y%4==0&&y%100!=0)||(y%400==0)) m2=29;break;
        case 4: m2=30;break;
        case 6: m2=31;break;
        case 8: m2=31;break;
        case 10: m2=31;break;
        case 12: m2=31;break;
        }
        s1=w1=w%7;d1=1;
        s2=w2=(w1+m1)%7; d2=1;
        switch(s1)//月份第一天前面空格数
        {
        case 0: printf("%5d",d1);break;
        case 1: printf("%10d",d1);break;
        case 2: printf("%15d",d1);break;
        case 3: printf("%20d",d1);break;
        case 4: printf("%25d",d1);break;
        case 5: printf("%30d",d1);break;
        case 6: printf("%35d",d1);break;
            
        } w1++;
        if (w1%7==0) goto area21;
area11:for(;d1<=m1;d1++)
       {
           printf("5d",d1);w1++;
           if(w1%7==0) goto area21;
       }
area12:for(;d1<=m1;d1++)
       {
           printf ("%5d",d1); w1++;
           if (w1%7==0) goto area22;
       }
area21:switch (s2)
       {
        case 0: printf("%5d",d2);break;
        case 1: printf("%10d",d2);break;
        case 2: printf("%15d",d2);break;
        case 3: printf("%20d",d2);break;
        case 4: printf("%25d",d2);break;
        case 5: printf("%30d",d2);break;
        case 6: printf("%35d",d2);break;
       }  w2++;
       if (w2%7==0) goto area12;
      
area22:for(;d2<=m2;d2++)
       {
           printf("5d",d2);w2++;
           if (w2%7==0) goto area12;
       }
       goto area12;
    }
}


可是出不来结果，高数指错。谢谢谢谢

为什么没有人理啊

goto用的太多了，程序中少用goto造成程序混乱，去掉goto再写吧、

劝你从写哈，把思路都写上，少用goto语句。