下列程序的输出结果是
#include<iostream.h>
void main()
{char*str="12123434";
int x1=0,x2=0,x3=0,x4=0,i;
for(i=0;str[i]!=’\0’;i++)
switch(str[i])
{case’1’:x4++;
case’2’:X3++;
case’3’:X2++;
case’4’:X1++;
}
cout<<X1<<","<<X2<<","<<X3<<","<<X4;
A.8,6,4,1
B.8,6,3,2
C.8,8,4,1
D.8,6,4,2