2015.3.28数组作数据成员3.4.5

来源：互联网发布：java定时任务管理模块编辑：程序博客网时间：2024/06/05 20:44

#include"Salary.h"int main(){    Salary a;    a.in_salary();    a.sort_salary();    a.out_salary();    a.show_salary();    return 0;}#ifndef SALARY_H_INCLUDED#define SALARY_H_INCLUDEDclass Salary{private:    int number;    double salary[500];public:    void in_salary();    void sort_salary();    void out_salary();    void show_salary();};#endif // SALARY_H_INCLUDED#include<iostream>#include<fstream>#include<cstdlib>#include"Salary.h"using namespace std;void Salary::in_salary(){    int i;    ifstream infile("salary.txt",ios::in);    if(!infile)    {        cerr<<"open error!"<<endl;        exit(1);    }    i=0;    while(infile>>salary[i])      {       i++;      }    number=i;    infile.close();}void Salary::sort_salary(){    int i,j;    double t;    for(i=number;i>=0;i--)    {        for(j=0;j<number;++j)        {            if(salary[j]<salary[j+1])            {                t=salary[j];                salary[j]=salary[j+1];                salary[j+1]=t;            }        }    }}void Salary::out_salary(){     int i;    ofstream outfile("sort salary.txt",ios::out);    if(!outfile)    {        cerr<<"open error!"<<endl;        exit(1);    }    i=0;    while(i<number)      {       outfile<<salary[i];       i++;      }    outfile.close();}void Salary::show_salary(){    int i;    for(i=0;i<number;i++)        cout<<salary[i]<<'\t';}

.对从文件的输入输出还是不懂，所以费力很长时间去写这个程序。

0 0