eg2.cpp

C++ 关于.NET方便的东西..是我很长时间才搜集道德

// eg2.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include<stdio.h>

int Mystrlen(char str1[])
{
	int nCount=0;
	while(str1[nCount] != '\0')
		nCount++;
	return nCount;
}

char* Mystrcpy(char str1[],char str2[])
{
	int nCount = 0;
	while(str2[nCount] != '\0')
	{
		str1[nCount] = str2[nCount];
		nCount++;
	}

	str1[nCount] = '\0';

	return str1;
}

char* Mystrcat(char str1[],char str2[])
{
	int nCount = 0;
	int nCoun = 0;

	while(str1[nCount] != 0)
		nCount++;

	while(str2[nCoun] != '\0')
	{
		str1[nCount] = str2[nCoun];
		nCount++;
		nCoun++;
	}
	str1[nCount] = '\0';

	return str1;
}

int main(int argc, char* argv[])
{
	char string[] = "hello!";
	//同strlen函数
	int nA = Mystrlen(string);
	printf("%d\n",nA);

	//同strcpy函数
	char str1[100] = "hello ";
	char str2[10] = "teacher!";

	printf("%s\n",Mystrcat(str1,str2));
	printf("%s\n",Mystrcpy(str1,str2));
	return 0;
}