将一个字符串中的字符反向排列

char s[] = "ABCDEFGHIJKLMN!";void reverse_string(char *str){char *p_str;char *p_end;char a;p_str = str;p_end = str;printf("The origine string is :%s\n",str);while(*p_end != '\0'){p_end++;}p_end--;for(;p_str<=p_end; p_str++,p_end--){a      = *p_str;*p_str = *p_end;*p_end = a;}printf("The reverse string is :%s\n",str);}int main(void){reverse_string(s);getch();return 0;}