public class demo2
{
    public static void main(String[] args)
    {
        String text="fang xing is no one";
             int count=0;
        int index=0;
        if(index!=-1)
        {
            count=count+1;
            index=text.indexOf(' ',index);
            index+=1;    
        }
        System.out.println(count + "," + index);
         }
}
为什么count的结果会是1？？？？