![](https://cos-cdn.shuashuati.com/pipixue-wap/2020-1230-1107-56/ti_inject-812ce.png)
下列程序输出的结果是( )。 #include 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='A';b='B'; fun2(&a,b); cout< a='A';b='B'; fun3(&a,&b); cout<