[单选题]
有以下程序
#include<stdio.h>
#include<string.h>
void fun(char *w,int m)
{ char s,*p1,*p2;
p1=w;p2=w+m-1;
while(p1<p2){s=*p1;*p1=*p2;*p2=s;p1++;p2--;}
}
main()
{ char a[]="123456";
fun(a,strlen(a));puts(a);
}
程序运行后的输出结果是
A.654321
B.116611
C.161616
D.123456