python生成器yield

def fun(n): for i in range(n): yield ifor v in fun(5): print(v)ouput:01234還有一段def fun(n): for i in range(n): yield iprint(fun(5))這段不是應該出來0，然後終止嗎？但出來的是<generator object fun at 0x000001F4A1215970>