C语言指针型函数

复制纯文本新窗口

1. int *ap(int x,int y){
2. /*函数体*/
3. }

int *ap(int x,int y){
    /*函数体*/
}

复制纯文本新窗口

1. main(){
2. int i;
3. char *day_name(int n);
4. printf("input Day No:\n");
5. scanf("%d",&i);
6. if(i<0) exit(1);
7. printf("Day No:%2d-->%s\n",i,day_name(i));
8. }
9. char *day_name(int n){
10. static char *name[]={ "Illegal day",
11. "Monday",
12. "Tuesday",
13. "Wednesday",
14. "Thursday",
15. "Friday",
16. "Saturday",
17. "Sunday"
18. };
19. return((n<1||n>7) ? name[0] : name[n]);
20. }

main(){
    int i;
    char *day_name(int n); 
    printf("input Day No:\n");
    scanf("%d",&i);
    if(i<0) exit(1);
    printf("Day No:%2d-->%s\n",i,day_name(i));
}
char *day_name(int n){
    static char *name[]={ "Illegal day",
        "Monday",
        "Tuesday",
        "Wednesday",
        "Thursday",
        "Friday",
        "Saturday",
        "Sunday"
    };
    return((n<1||n>7) ? name[0] : name[n]);
}