为什么如下程序用getline会出现错误，哪位大哥帮忙看看。

[fczqx]

为什么如下程序红色处用getline会出现错误，哪位大哥帮忙看看，想用getline做，应该如何改啊？非常感谢！
#include "123.h"
#include <fstream>
#include<iostream>
#include <iomanip>
using namespace std;

void get_data()
{char ch;
ifstream infile("E:\\test.txt",ios::in);//input data
if(!infile)
{cerr<<"open error!"<<endl;
exit(1);
}
ofstream outfile("E:\\result.txt");//output data
if(!outfile)
{cerr<<"error"<<endl;
exit(1);
}
while([color=#FF0000]infile.get(ch))[/color]{

outfile.put(ch);
cout<<ch;

}
cout<<endl;
infile.close();
outfile.close();}
int main()
{
get_data();
return 0;}

[sunzuyi]

你想用getline实现什么？将从test文件里读取数据改成你手动输入么？

[donle1000]

#include <fstream> 
#include <iostream> 
#include <iomanip> 
using namespace std; 

void get_data() 
{
	char ch[256];  //getline获取行,不能用单个字符接收
	ifstream infile("data.txt",ios::in);//input data 
	if(!infile) 
	{
		cerr <<"open error!" <<endl; 
		exit(1); 
	} 
	ofstream outfile("file.txt");//output data 
	if(!outfile) 
	{
		cerr <<"error" <<endl; 
		exit(1); 
	} 
	while(infile.getline(ch,80)) //读取长度
	{ 
		
		//outfile.put(ch); 
		cout <<ch << endl; 
		
	} 
	cout <<endl; 
	infile.close(); 
	outfile.close();
} 
int main() 
{ 
	get_data(); 
	return 0;}

[fczqx]

没人来了么？