三件套:char>int int>char bool>int
主要就是:
(节选)
1
int main()
{
//批注:这是 char 转 int 的代码。不要搞混了
char ch;
cin>>ch//我用#iostream
cout<<int(ch)<<endl;
}
2
int main()
{
//批注:这是 int 转 char
int in;
cin>>in;
cout<<char(in)<<endl;
}
3
int main()
{
//批注:bool 变 int
main3:
char bo;
bool Bo;
cout<<"t/f, "<<endl;
cin>>bo;
if(bo==116)
{
Bo=true;
cout<<int(Bo)<<" ";
Bo=false;
goto main3;
}
else if(bo==102)
{
Bo=false;
cout<<int(Bo)<<" ";
Bo=false;
goto main3;
}
}
全代码:
#include<iostream>
using namespace std;
int main()
{
M:
cout<<"\nwhich kind of trans? 1 ch>in; 0 in>ch; 2 bo>in; 3 to exit"<<endl;
int choose;
cin>>choose;
if(choose==1)
{
cout<<"0 go back"<<endl;
main:
char ch;
cin>>ch;
if(ch==48)
{
goto M;
}
cout<<int(ch)<<" ";
goto main;
}
else if(choose==0)
{
cout<<"0 go back"<<endl;
main2:
int in;
cin>>in;
if(in==0)
{
goto M;
}
cout<<char(in)<<" ";
goto main2;
}
else if(choose==2)
{
main3:
char bo;
bool Bo;
cout<<"t/f, b to go back"<<endl;
cin>>bo;
if(bo==116)
{
Bo=true;
cout<<int(Bo)<<" ";
Bo=false;
goto main3;
}
else if(bo==102)
{
Bo=false;
cout<<int(Bo)<<" ";
Bo=false;
goto main3;
}
else if(bo=98)
{
goto M;
}
else
{
cout<<"error!"<<endl;
goto main3;
}
}
else if(choose==3)
{
return 0;
}
else
{
cout<<"error!"<<" ";
goto M;
}
}