#include "stdio.h"

main()
{
    int i=0;
    char s[]={'h','e','l','l','o'};
    while(s[i]!='\0')
    {
        printf("%c ",s[i]);
        i++;
    }
    printf("\n%d\n",i);
}
结果为什么是：h e l l o ??
              9
而不是：h e l l o
        5