程序代码：

#include<stdio.h>
int main()
{
    char data[12][5]={"Jan","Feb","Mar","Apr","May","June","July","Aug","Sep","Oct","Nov","Dec"};
    int a;
    scanf("%d",&a);
    printf("%s\n",data+a-1);
    return 0;
}

程序代码：

#include <stdio.h>
int main (void) {
        char *mon[]={"Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec"};
        int d;
        scanf("%i",&d);
        printf("%s\n",mon[d-1]);
        return 0;
}