第十六周任务一

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

int main()
{
	double salary[499];
	double t;
	int i;

	ifstream infile("salary.txt",ios::in);//定义文件流对象，打开磁盘文件"salary.txt"
	if(!infile)                        //如果打开失败，outfile返回0值
	{
		cerr<<"open error!"<<endl;
		exit(1);
	}
	for(i = 499;i >= 0;i--)
	{
		infile >> salary[i];
		salary[i] += 100;
	}
	infile.close(); 

	for(int j = 0;j < 498;j++)
		for(i = 0;i < 498 - j;i++)
			if(salary[i] < salary[i + 1])
			{
			    t = salary[i];
			    salary[i] = salary[i + 1];
			    salary[i + 1] = t;
			}
	
    for(i = 0;i <= 499 ;i++)
		cout << salary[i] << endl;
	  

	ofstream outfile("order_salary.txt",ios::out);
	for(i = 0;i <= 499 ;i++)
		outfile << salary[i] << endl;
 

	outfile.close();       //关闭磁盘文件"salary.txt"
	
	system("pause");
	return 0;
}