C++文件操作

源代码：

#include

#include

#include

struct worker

{

char name[30];

char department[30];

float basepay,allowance,total;

};

void main()

{

char filename[30]="paydata.txt";

struct worker data;

ofstream outstuf;

outstuf.open(filename,ios::out|ios::binary);

if(!outstuf) { cout<<"打开文件失败！"<

outstuf<<"这是一个和工人工资有关的文件.\n"<

char ch='N';

while(ch!='y'&&ch!='Y')

    {

cout<<"请输入工人名字,工人住址及其基本工资和奖金："<

cin>>data.name>>data.department>>data.basepay>>data.allowance;//插入数据

outstuf<

cout<<"是否结束输入？Y or N?"<

cin>>ch;

}

outstuf.close();

//以下为改动操作*********

ifstream instuf;  

instuf.open(filename,ios::in|ios::binary);

if(!instuf)  {  cout<<"文件打开失败，程序退出!"<

instuf.clear();

int i=0;

while(!instuf.eof())

{

instuf>>data.name>>data.department>>data.basepay>>data.allowance>>data.total;

data.basepay=data.basepay+100;;

data.total=data.total+100;

cout<<"现在输出工人的名字、住址、基本工资、奖金、总共资金:"<

cout<

i++;

}

instuf.close();

}