c++小数位 表示

#include <iostream>

#include <iomanip>

using namespace std;

struct WageList

{

    char name[10];  //姓名

    double baseWage;   //基本工资

    double bonus;      //奖金

    double total;       //总额

};

int main( )

{

    WageList wage[100];

    //************* begin*****************
int i,n;
cin>>n;
double aver=0;
cout<<setiosflags(ios::fixed)<<setprecision(2);
for(i=0; i<n; i++)

    {

        cin>>wage[i].name>>wage[i].baseWage>>wage[i].bonus;
wage[i].total=wage[i].baseWage+wage[i].bonus;
aver=aver+wage[i].total;

    }
aver=aver/n;

    //************* end *****************

    cout <<setiosflags(ios::fixed)<<setprecision(2);

    for(i=0; i<n; i++)

    {

        cout<<wage[i].name<<" "<<wage[i].baseWage<<" "<<wage[i].bonus<<" "<<wage[i].total<<endl;

    }

    cout<<"average:"<<aver<<endl;

    return 0;

}