给出下面程序的输出结果。
#include<iostream.h>
void main (void){
char ch1='a',ch2='b',ch3='6';
int i=9,j=8,k=7;
double x=3.6,y=5.8,z=6.9;
ch1=ch2;
ch2=ch3;
ch3=ch1;
cout<<"ch1="<<ch1<<"ch2="<<ch2<<"ch3="<<ch3<<endl;
j=k;
k=i;
j=k;
cout<<"i="<<i<<"j="<<j<<"k="<<k<<endl;
x=y;
y=x;
x=z;
z=y;
cout<<"x="<<x<<"y="<<y<<"z="<<z<<endl;
} 
