#define _CRT_SECURE_NO_WARNINGS
#include<stdio.h>
#include<string.h>
//strtok的使用
//int main()
//{
//	char arr[] = "fjc@qq.com hehe";
//	char* p = "@. ";
//	char tmp[20] = { 0 };
//	strcpy(tmp,arr);//copy一份arr不改变arr;
//	char* ret = NULL;
//	for (ret = strtok(tmp, p); ret != NULL; ret = strtok(NULL, p))
//	{
//		printf("%s\n", ret);
//	}
//	return 0;
//}
//内存拷贝
#include<assert.h>
void* my_memcpy(void* shou, const void* fa, size_t num)
{
	void* ret = shou;
	assert(shou && fa);
	while (num--)
	{
		*(char*)shou = *(char*)fa;//强制类型转换为(char*)便于确定宽度以自加
		shou = (char*)shou + 1;
		fa = (char*)fa + 1;

	}
	return ret;
}
int main()
{
	int arr1[] = { 0,1,2,3,4,5,6,7,8,9 };
	int arr2[20] = { 0 };
	my_memcpy(arr2, arr1,8);//20为传的字节数
	return 0;
}