大神给改改代码

P.s__葬爱

#include<string>
#include<iostream>
using namespace std;
class ExamInfo
{
        private:
        string name;
        enum mode{GRADE,PASS,PERCENTAGE};

union
{
       
        char grade;
        bool pass;
        int percent;
       
}
public:
        ExamInfo(string name,char grade):ame(name),mode(GRADE),grade(grade){}
        ExamInfo(string name,bool pass):name(name),mode(PASS),pass(pass){}
        ExamInfo(string name,int percent):name(name),mode(PERCENTAGE),percent(percent)()
        void show();
};
void ExamInfo::show()
{
        cout<<name<<";"
        switch(mode)
        {
        case GRADE:cout<<grade;break;
        case PASS:cout<<(pass?"PASS":"FALT");break;
        case PERCENTAGE:cout<<percent;break;
        }
        cout<<endl;
}
int main()
{
        ExamInfo course1("English",'B');
        ExamInfo course2("Calculus",true);
        ExamInfo course3("c++ Programming",85);
        course1.show();
        course2.show();
        course3.show();
        return 0;
}

elvo

1. #include<string>
   
2. #include<iostream>
   
3. using namespace std;
   
4. class ExamInfo
   
5. {
   
6.         private:
   
7.         string name;
   
8.         enum {GRADE,PASS,PERCENTAGE}mode;  //////////////////////////////
   
9. 
   
10. union
    
11. {
    
12.       
    
13.         char grade;
    
14.         bool pass;
    
15.         int percent;
    
16.       
    
17. };
    
18. public:
    
19.         ExamInfo(string name,char grade):name(name),mode(GRADE),grade(grade){}    ////////////////////////
    
20.         ExamInfo(string name,bool pass):name(name),mode(PASS),pass(pass){}
    
21.         ExamInfo(string name,int percent):name(name),mode(PERCENTAGE),percent(percent){}  ///////////////////
    
22.         void show();
    
23. };
    
24. void ExamInfo::show()
    
25. {
    
26.         cout<<name<<";";
    
27.         switch(mode)
    
28.         {
    
29.         case GRADE:cout<<grade;break;
    
30.         case PASS:cout<<(pass?"PASS":"FALT");break;
    
31.         case PERCENTAGE:cout<<percent;break;
    
32.         }
    
33.         cout<<endl;
    
34. }
    
35. int main()
    
36. {
    
37.         ExamInfo course1("English",'B');
    
38.         ExamInfo course2("Calculus",true);
    
39.         ExamInfo course3("c++ Programming",85);
    
40.         course1.show();
    
41.         course2.show();
    
42.         course3.show();
    
43.         return 0;
    
44. }
    

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