#include<stdio.h>
main( )
{int C=O,k;
for (k=1;k<3;k++)
switch(k)
{default:C+=k;
case 2:C++;break;
cKse 4:C+=2;break;
}
prinff(“%d\n”,C);
{
程序运行后的输出结果是
A.3
B.5
C.7
D.9