簡單實(shí)現(xiàn)對yes子串個數(shù)的識別,參考代碼如下:
#include<stdio.h>
int main()
{
char str[80];
int i=0,n=0;
gets(str);
while(str[i]!=0){
if(str[i]=='y')
if(str[i+1]!=0&&str[i+1]=='e')
if(str[i+2]!=0&&str[i+2]=='s')
{++n;i=i+2;}
++i;
}
printf("%d",n);
return 0;
}