1 #define _CRT_SECURE_NO_WARNINGS 2 #include
     
       3 #include
      
        4 #include
       
         5  6 int inverse(char *str1,char *str2) 7 { 8     char *p1 = str1; 9     char *p2 = str2;10     while (p1 < p2)11     {12         char c = *p1;13         *p1 = *p2;14         *p2 = c;15 16         ++p1;17         --p2;18     }19     return 0;20 }21 int main()22 {23     char buf[] = "abcdefg";24     char *p1 = buf;25     char *p2 = buf + strlen(buf) - 1;26     printf("原字符串是：%s\n", buf);27     inverse(p1, p2);28     printf("字符串反转后：%s\n", buf);29     system("pause");30     return 0;31 }