Question

python中为什么不能在判断的时候进行变量初始化操作

# -*- coding:utf-8 -*-

from random import randint

num = randint(1,100)

print "Guess what I think?"

while (answer=input())!=num:

if answer<num:
print "%d is too small" % answer

if answer>num:
print "%d is too big" % answer

if answer==num:
print "BINGO,%d is right answer" % answer
bingo = True

Answer 1

不可以 你可以去了解下python虚拟机的引用计数和垃圾回收机制 对于一个对象（变量）来说，引用次数必须是大于0的，否则会被虚拟机回收