指针形式找出字符串中的某段字符串
#include<stdio.h>
#include <string.h>
char* m_mach(char* a, char ch1, char ch2)
{
char* p = a;
char* ptr1;
char* ptr2;
while (*p != ch1 && *p !=
#include <string.h>
char* m_mach(char* a, char ch1, char ch2)
{
char* p = a;
char* ptr1;
char* ptr2;
while (*p != ch1 && *p !=