我有以下代码:
import time
def run_indefinitely():
while True:
# code to run indefinitely goes here
print("Running indefinitely...")
time.sleep(1)
try:
# Run the code indefinitely until Enter key is pressed
run_indefinitely()
except KeyboardInterrupt:
print("Loop interrupted by user")
有没有办法通过按“enter”而不是 ctrl+C 来打破 while 循环?
这在 Python 中是非常棘手的。
import os
import signal
import sys
import time
from threading import Timer
from readchar import readkey # pip install readchar
def wait_for(key, timeout):
"""wait `timeout` seconds for user to press `key`"""
pid = os.getpid()
sig = signal.CTRL_C_EVENT if os.name == "nt" else signal.SIGINT
timer = Timer(timeout, lambda: os.kill(pid, sig))
timer.start() # spawn a worker thread to interrupt us later
while True:
k = readkey()
print(f"received {k!r}")
if k == key:
timer.cancel() # cancel the timer
print("breaking")
break
def run_indefinitely():
while True:
print("Running indefinitely...")
try:
wait_for(key="\n", timeout=1)
except KeyboardInterrupt:
continue
else:
break
run_indefinitely()
print("Loop interrupted by user")