Compiling... program6.3.c C:\Users\acer1\Desktop\C语言学习\二6\program6.3.c(10) : error C2065: 'days' : undeclared identifier 执行 cl.exe 时出错. program6.3.obj - 1 error(s), 0 warning(s)
#include <stdio.h>
main()
{
int month;
printf("请输入一个月份:");
scanf("%d",&month);
switch(month)
{
case 2:
days=28;break;
case 4: case 6: case 9: case 11:
days=30;break;
default:
days=31;break;
}
printf("%d天\n",days);
}
days变量没有定义:
#include <stdio.h>
main()
{
int month,days;
printf("请输入一个月份:");
scanf("%d",&month);
switch(month)
{
case 2:
days=28;break;
case 4: case 6: case 9: case 11:
days=30;break;
default:
days=31;break;
}
printf("%d天\n",days);
}