第十六周任务（二）

#include <iostream>#include <fstream>#include <string>using namespace std;class student{private:string name;double cpp;double math;double english;double zong;public:student(){};student(string nam,double c,double m,double e):name(nam),cpp(c),math(m),english(e){zong=c+m+e;}void set(string nam,double c,double m,double e);    string get_name(){return name;}      double get_cpp(){return cpp;}      double get_math(){return math;}      double get_english(){return english;}      double get_zong(){return zong;}      void set_cpp(double c){cpp=c;}      void set_math(double m){math=m;}      void set_english(double e){english=e;}      void set_zong(double z){zong=z;}  };void student::set(string nam,double c,double m,double e){name=nam;cpp=c;math=m;english=e;zong=c+e+m;}int main(){student a[100],t;int i,j;string Name;double Cpp,Math,English;ifstream infile("score.dat",ios::in);if(!infile){cerr<<"open error"<<endl;exit(1);}    for(i=0;i<10;i++){infile>>Name>>Cpp>>Math>>English;a[i].set(Name,Cpp,Math,English);}infile.close();    student b("nobody",0,0,0);for(i=0;i<100;i++){if(a[i].get_cpp()>b.get_cpp()){b.set_cpp(a[i].get_cpp());}if(a[i].get_math()>b.get_math()){b.set_math(a[i].get_math());}if(a[i].get_english()>b.get_english()){b.set_english(a[i].get_english());}if(a[i].get_zong()>b.get_zong()){b.set_zong(a[i].get_zong());}}for(j=0;j<100-2;j++)for(i=0;i<99-j;i++)if(a[i].get_zong()>a[i+1].get_zong()){t=a[i];a[i]=a[i+1];a[i+1]=t;}    cout<<"C++最高分为: "<<b.get_cpp()<<endl;      cout<<"高等数学最高分为: "<<b.get_math()<<endl;      cout<<"英语最高分为: "<<b.get_english()<<endl;      cout<<"总分最高分为: "<<b.get_zong()<<endl;    ofstream outfile("ordered_salary.txt",ios::out); if(!outfile){cout<<"open error"<<endl;exit(1);}for(i=0;i<100;i++){outfile<<a[i].get_name()<<" ";outfile<<a[i].get_cpp()<<" ";outfile<<a[i].get_math()<<" ";outfile<<a[i].get_english()<<" ";outfile<<a[i].get_zong()<<endl;}   outfile.close();         system("pause");      return 0;  }  C++最高分为: 98高等数学最高分为: 98英语最高分为: 96总分最高分为: 270请按任意键继续. . .这次的任务使我认识到自己的不足，并没有真正的掌握所学的的知识，此次任务中所犯的错误就是，忘记了私有成员是无法在主函数中被调用。