C语言输入年份像挂历一样输出12个月份

这是源代码

#include<stdio.h>

int main()

{

int d = 365;

int m,y;

int l = 0;

int i, j, k =5;

int a[13] = { 0,31,28,31,30,31,30,31,31,30,31,30,31 };

printf("输入年份\n");

scanf_s("%d", &m);

if ((m % 400 == 0) || (m % 4 == 0 && m % 100 != 0))

{ a[2] = 29; d = 366; }

k = (m - 1 + (m - 1) / 4 - (m - 1) / 100 + (m - 1) / 400 + d) % 7;

if (k == 0) k = 6;

else k=k -1;

k = k * 3;

for (y=1;y<=12;y++)

{

printf("%d\n", y);

printf("---------------------\n");

printf(" 一 二 三 四 五 六 七\n");

for (j = 1; j <= k; j++)

printf(" ");

k = k / 3;

for (i = 1; i <= a[y]; i++)

{

printf("%3d", i);

l++;

if ((k + l) % 7 == 0)

{

printf("\n");

k = 0;

l = 0;

}

}

printf("\n"); printf("---------------------\n");

k = 3*l;

l = 0; }

}

用一个大for循环输出月份

再用两个for循环控制空格和输出的月份