有以下程序
#include <stdio.h>
main()
{ char *s=“120119110”;
int n0,n1,n2,nn,i;
n0=n1=n2=nn=i=0;
do{
switch(s[i++])
{ default : nn++;
case ‘0’ : n0++;
case ‘1’ : n1++;
case ‘2’ : n2++;
} } while(s[i]);
printf(“n0=%d,n1=%d,n2=%d,nn=%d\n”,n0,n1,n2,nn);
}
程序的运行结果是
A) n0=4,n1=8,n2=9,nn=1
B) n0=2,n1=5,n2=1,nn=1
C) n0=2,n1=7,n2=10,nn=1
D) n0=3,n1=8,n2=9,nn=1
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