[英]How to set a timeout for Input
如果你等了 4 秒,它会说“你没时间了”,这很好。 但是,为了继续循环,您必须按enter
键才能继续。
我想要这样当它在下面打印“你用完了时间”而不仅仅是键入时,它会显示一个输入语句,如“键入'attack'以继续前进”并且循环将从它所在的位置继续。
from threading import Timer
import time
monsterhp = int(800)
y = 150
while monsterhp > 0:
timeout = 4
t = Timer(timeout, print, ['You ran out of time.'])
t.start()
print(" ")
prompt = "You have %d seconds Type 'attack' to hit the monster\nType here: " % timeout
answer = input(prompt)
t.cancel()
if answer == "attack":
print("You strike the monster")
time.sleep(1)
monsterhp = monsterhp - y
print("War Lord Health:", monsterhp)
完成你提议的任务并不像你想象的那么容易。 使用signal
模块更容易做到这一点:(我已将您的代码与我链接的答案的修改版本合并)
import signal, time
def TimedInput(prompt='', timeout=20, timeoutmsg = None):
def timeout_error(*_):
raise TimeoutError
signal.signal(signal.SIGALRM, timeout_error)
signal.alarm(timeout)
try:
answer = input(prompt)
signal.alarm(0)
return answer
except TimeoutError:
if timeoutmsg:
print(timeoutmsg)
signal.signal(signal.SIGALRM, signal.SIG_IGN)
return None
monsterhp = int(800)
y = 150
while monsterhp > 0:
timeout = 4
timeoutmsg = 'You ran out of time.'
print(" ")
prompt = "You have %d seconds Type 'attack' to hit the monster\nType here: " % timeout
answer = TimedInput(prompt, timeout, timeoutmsg)
if answer == "attack":
print("You strike the monster")
time.sleep(1)
monsterhp = monsterhp - y
print("War Lord Health:", monsterhp)
注意:这只适用于所有 unix/mac 系统
您可以将 while 循环更改为此,以获得代码的改进版本:)
while monsterhp > 0:
timeout = 4
timeoutmsg = 'You ran out of time.'
print(" ")
prompt = "You have %d seconds Type 'attack' to hit the monster\nType here: " % timeout
answer = TimedInput(prompt, timeout, timeoutmsg)
if answer == "attack":
print("You strike the monster")
time.sleep(1)
monsterhp = monsterhp - y
print("War Lord Health:", monsterhp)
elif answer == None:
print("The War Lord has killed you, you're now dead")
print("Thanks for playing, \nGAME OVER")
break
有一个新的库inputimeout
用于带超时的标准输入
$ pip install inputimeout
用法
from inputimeout import inputimeout, TimeoutOccurred
try:
string = inputimeout(prompt='>>', timeout=5)
except TimeoutOccurred:
string = 'time is over'
print(string)
import datetime
def custom_time_input(msg, seconds):
try:
print(msg)
# current time in seconds
current_time = datetime.datetime.now()
time_after = current_time + datetime.timedelta(seconds=seconds)
while datetime.datetime.now() < time_after:
print("Time left: ", end="")
print(time_after - datetime.datetime.now(), end="\r")
time.sleep(1)
print("\n")
return True
except KeyboardInterrupt:
return False
res = custom_time_input("If you want to create a new config file PRESS CTRL+C within 20 seconds!", 20)
if res:
pass # nothing changed
else:
pass # do something because user pressed ctrl+c
> Blockquote
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