python input（）在调用input（）之前要使用旧的stdin

Question

Python3的input()在两次调用input()之间似乎采用了旧的标准输入。有没有办法忽略旧输入，而仅接受新输入（调用input()之后）？

import time

a = input('type something') # type "1"
print('\ngot: %s' % a)

time.sleep(5) # type "2" before timer expires

b = input('type something more')
print('\ngot: %s' % b)

输出：

$ python3 input_test.py
type something
got: 1

type something more
got: 2

Answer 1

您可以在第二个input()之前刷新输入缓冲区，就像这样

import time
import sys
from termios import tcflush, TCIFLUSH

a = input('type something') # type "1"
print('\ngot: %s' % a)

time.sleep(5) # type "2" before timer expires

tcflush(sys.stdin, TCIFLUSH) # flush input stream

b = input('type something more')
print('\ngot: %s' % b)