模拟实现strstr

char* my_strstr(const char*dest, const char*src){char *pdest = dest;char* psrc = src;while (*psrc&*pdest){if (*psrc == *pdest){psrc++;pdest++;}elsebreak;}if ((*psrc == '\0'))return src;elsereturn NULL;}int main(){char *str1 = "qwee";char* str2 = "qwer";char* ret = my_strstr(str1, str2);printf("%s\n", ret);system("pause");}