编程菜鸟的日记-初学尝试编程-C++ Primer Plus 第6章编程练习4

#include <iostream>
using namespace std;
const int strsize=30;
const int BOPSIZE=5;
void showmenu()
{
cout<<"Benevolent Order of Programmers Report\n"
"a. display by name b. display by title\n"
"c. display by bopname d. display by preference\n"
"q. quit\n";
}
struct bop
{
char fullname[strsize];
char title[strsize];
char bopname[strsize];
int preference;
};
int main()
{
showmenu();
char ch;
int i;
bop newbop[BOPSIZE]=
{
{"Wimp Macho","Teahcer","WWW",0},
{"Raki Rhodes","Junior Programmer","RRR",1},
{"Celia Laiter","Star","MIPS",2},
{"Hoppy Hipman","Analyst Trainee","HHH",1},
{"Pat Hand","Doctor","LOOPY",2}
};
cout<<"Enter your choice: ";
while(cin>>ch && ch!='q')
{
switch(ch)
{
case 'a':
for(i=0;i<BOPSIZE;i++)
cout<<newbop[i].fullname<<endl;
break;
case 'b':
for(i=0;i<BOPSIZE;i++)
cout<<newbop[i].title<<endl;
break;
case 'c':
for(i=0;i<BOPSIZE;i++)
cout<<newbop[i].bopname<<endl;
break;
case 'd':
for(i=0;i<BOPSIZE;i++)
{
if(0==newbop[i].preference)
cout<<newbop[i].fullname<<endl;
else if(1==newbop[i].preference)
cout<<newbop[i].title<<endl;
else if(2==newbop[i].preference)
cout<<newbop[i].bopname<<endl;
}
break;
//case 'q':cout<<"Bye!\n";
}
cout<<"Next choice: ";
}
cout<<"Bye!\n";
system("pause");
return 0;
}
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