英文:
How to get input from user with non- blocking function in Python?
问题
I tried a lot to find how to use msvcrt.kbhit() but all I write, it works wrong...
I tried:
while True:
msg = ''
print("Waiting for your message.\n")
time.sleep(1) # I tried with and without this line...
if msvcrt.kbhit():
msg = msvcrt.getch().decode()
print(msg, end='', flush=True)
if ord(msg) == 13: # Client enter 'ENTER'
break
In this line: print(msg, end='', flush=True) end and flush are red
???
(Other than that, all the code works great!
When I used INPUT - everything worked fine...)
英文:
I tried a lot to find how to use msvcrt.kbhit() but all I write, it works wrong...
I tried:
while True:
msg = ''
print("Waiting for your message.\n")
time.sleep(1) # I tried with and without this line...
if msvcrt.kbhit():
msg = msvcrt.getch().decode()
print(msg, end='', flush=True)
if ord(msg) == 13: # Client enter 'ENTER'
break
In this line: print(msg, end='', flush=True) end and flush are red
???
(Other than that, all the code works great!
When I used INPUT - everything worked fine...)
答案1
得分: 0
以下是代码部分的翻译：
import msvcrt
import time
def nonblocking_input(prompt):
print(prompt, end='', flush=True)
msg = ''
while True:
if msvcrt.kbhit():
ch = msvcrt.getch().decode()
if ord(ch) == 13:
print()
return msg
print(ch, end='', flush=True)
msg += ch
time.sleep(0.05)
def main():
msg = nonblocking_input('等待您的消息：')
print(f'好的，收到消息：“{msg}”')
main()
我使用了 time.sleep(0.05) 来降低平均 CPU 负载。
我在 Windows 的命令提示符中使用 python 测试了这段代码，因为似乎 pycharm 对 msvcrt 有问题。
英文:
Ok, this code is a 'replacement' for input(), but uses msvcrt.
import msvcrt
import time
def nonblocking_input(prompt):
print(prompt, end='', flush=True)
msg = ''
while True:
if msvcrt.kbhit():
ch = msvcrt.getch().decode()
if ord(ch) == 13:
print()
return msg
print(ch, end='', flush=True)
msg += ch
time.sleep(0.05)
def main():
msg = nonblocking_input('Waiting for your message: ')
print(f'Ok, got:"{msg}"')
main()
I used time.sleep(0.05) to reduce the average cpu load.
I tested this code with python at the windows cmd prompt because pycharm seems to have a problem with msvcrt
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