学步园

1. 常规:

---

#include <stdio.h>

int main(void)
{
    int i;
    for (i = 0; i 

2. 省略 default:

---

#include <stdio.h>

int main(void)
{
    int i;
    for (i = 0; i 

3. 相同结果:

---

#include <stdio.h>

int main(void)
{
    int i;
    for (i = 0; i 

4. 用于字符:

---

#include <stdio.h>

int main(void)
{
    char c;
    for (c = 'A'; c 

5. 用于枚举:

---

#include <stdio.h>

int main(void)
{
    enum ABCD {AAA,BBB,CCC,DDD} e;

    e = CCC;
    switch (e) {
        case AAA: printf("%d.AAA\n", e); break;
        case BBB: printf("%d.BBB\n", e); break;
        case CCC: printf("%d.CCC\n", e); break;
        case DDD: printf("%d.DDD\n", e); break;
    default:
        ;
    }
            
    getchar();
    return 0;
}