希望有哪位大神帮我解释一下这几行代码

cout<<"fish #1: ";
int i=0 ;
while(i>fish[i])
{
if(++i<5)
cout<<"fish #" <<i+1<<":";
}

cout<<"fish #1: "; //输出 "fish #1: 
int i=0 ;
while(i>fish[i]) //寻找fish[i]<i的，也就是fish[0] < 0, fish[1] < 1 ...
{
if(++i<5) //输出五条
cout<<"fish #" <<i+1<<":";
}