string.cc

达内IT培训Unix C++第三天源码 是入门Unix 下C++编程的好东西

#include <iostream>
using namespace std;
#include <cstring>

void inputStr(char s[], int n);
int inputInt();
void copyLeft(char d[], char s[], int n);
void copyRight(char d[], char s[], int n);

int main()
{
	char buf[100];
	inputStr(buf, 100);
	int n=inputInt();
	char buf1[100], buf2[100];
	copyLeft(buf1, buf, n);
	copyRight(buf2, buf, n);
	cout << "buf1=" << buf1 << endl;
	cout << "buf2=" << buf2 << endl;
}

void inputStr(char s[], int n)
{
	cout << "input a string:";
	cin.getline(s, n);
}
int inputInt()
{
	cout << "input a position:";
	int n;
	cin >> n;
	return n;
}
void copyLeft(char d[], char s[], int n)
{
	int i;
	for(i=0; i<n; i++)
		d[i] = s[i];
	d[i] = '\0';
}
void copyRight(char d[], char s[], int n)
{
	int i=0;
	while((d[i]=s[i+n])!='\0')
		++i;
}