阅读下面程序: include<iostream.h> void funl(char a,char b) { char c; c=a;a=b;b=C; } void f
阅读下面程序:
include<iostream.h>
void funl(char a,char b)
{
char c;
c=a;a=b;b=C;
}
void fun2(char &a,char b)
{
char c;
c=a;a=b;b=c;
}
void fun3(char &a,char &b)
{
char c;
c=a;a=b;b=C;
}
void main()
{
char a,b;
a='A';b='B';
funl(a,b);cout<<a<<b;
a='A';b='B';
fun2(a,b);cout<<a<<b;
a='A';b='B';
fun3(a,b);cout<<a<<b;
}
则该程序的输出为【 】。