switch少打了t
#include<stdio.h>
int main() {
int n;
scanf("%d",&n);
switch(n)
{
case 1: printf("January/n");break;
case 2:printf("February");break;
case 3: printf("March");break;
case 4: printf("April");break;
case 5: printf("May");break;
case 6:printf("June");break;
case 7: printf("July");break;
case 8: printf("August");break;
case 9: printf("September");break;
case 10:printf("October");break;
case 11: printf("November");break;
case 12: printf("December");break;
}
return 0;
}
关键字应该是:switch (少打了t)