文件中有一组整数，要求排序后输出到另一个文件中



这个主要复习一下文件输入输出流~~

//文件中有一组整数，要求排序后输出到另一个文件中 

#include <iostream>
#include <fstream> //文件输入输出流
#include <vector>
using namespace std;

int main()
{
	ifstream InFile("in.txt");
	if(InFile.good())
	{
		cout<<"open file success!"<<endl;
	}
	ofstream OutFile("out.txt");

	vector<int> num;

	int temp;
	while(!InFile.eof())
	{
		InFile>>temp;
		num.push_back(temp);
	}
	vector<int>::iterator i;
	cout<<"before sort..."<<endl;
	for(i=num.begin();i!=num.end();++i)
		cout<<*i<<" ";
	cout<<endl;
	int k;
	for(k=0;k<num.size();k++)
		for(int j=0;j<num.size()-k-1;j++)
			if (num[j]>num[j+1])
			{
				temp=num[j];
				num[j]=num[j+1];
				num[j+1]=temp;
			}
	cout<<"after sort.."<<endl;
	for(i=num.begin();i!=num.end();++i)
	{
		cout<<*i<<" ";
		OutFile<<*i<<" ";
	}
	cout<<endl;
	InFile.close();
	OutFile.close();
	return 0;

}