MonthName (10 分)

month_name: return name of n-th month

函数接口定义：

char *month_name(int n);

裁判测试程序样例：

#include <stdio.h>

char *month_name(int n);

int main()
{
    freopen("0.in", "r", stdin);
    freopen("0.out", "w", stdout);
    printf("The month 1 is %s.\n", month_name(1));
    printf("The month 13 is %s.\n", month_name(13));

    int month;

    while(scanf("%d", &month) == 1) {
        printf("%s\n", month_name(month));
    }

    return 0;
}

/* 请在这里填写答案 */

输入样例：

1

结尾无空行

输出样例：

The month 1 is January.
The month 13 is Illegal month.
January

结尾无空行

char *month_name(int n){
    if(n<1||n>12){
        return "Illegal month";
    }
        
     switch(n){
             case 1:return "January";break;
             case 2:return "February";break;
             case 3:return "March";break;
             case 4:return "April";break;
             case 5:return "May";break;
             case 6:return "June";break;
             case 7:return "July";break;
             case 8:return "August";break;
             case 9:return "September";break;
             case 10:return "October";break;
             case 11:return "November";break;
             case 12:return "December";break;
             
     }
         

}