raw_input为空时执行操作 [英] do action while raw_input is empty

问题描述

我想在等待用户输入时执行一些操作: 我在想:

I'd like to do some actions while waiting for a user input: I was thinking of:

var = raw_input("what are you thinking about")
while var == None:
   dosomethingwhilewaiting()
print "input is:", var

，但是raw_input在用户输入进入之前一直处于阻塞状态. 有什么想法吗?

but raw_input is blocking until a user input come in. Any ideas?

推荐答案

您可以使用线程.

import thread
import time

var = None
def get_input():
    global var
    var = raw_input("what are you thinking about")

thread.start_new_thread(get_input, ())

i = 0
while var == None:
    i += 0.1
    time.sleep(0.1)
print "input is:", var
print "it took you %d seconds to answer" % i

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