我正在编写一个程序，当其他任务在后台运行时，用户需要能够在控制台中进行输入。问题是，每当控制台打印新行时，它都会将其附加到用户正在键入的行中，而输入会被打乱。
这是我写的代码：
def screen_output():
while True:
print("something")
time.sleep(1)
def user_input():
while True:
some_input = input("type in something: ")
print(f"you typed: {some_input}")
t1 = threading.Thread(target=screen_output, daemon=True)
t2 = threading.Thread(target=user_input, daemon=True)
t1.start()
t2.start()
while True:
pass
这是我得到的输出：
something
dfgdfgdfgdfgsomething
dfgdfgdfg
you typed: dfgdfgdfgdfgdfgdfgdfg
type in something: something
dfgdfgherherhsomething
erherh
you typed: dfgdfgherherherherh
type in something: erherhsomething
reherherh
you typed: erherhreherherh
type in something: erhsomething
rherherherhersomething
hztzutzusomething
ztutzasdsomething
asdasdasd
you typed: erhrherherherherhztzutzuztutzasdasdasdasd
type in something: something
asdasdasdasdassomething
d
you typed: asdasdasdasdasd
type in something: asdasdsomething
something
理想情况下，它看起来像这样：
something
you typed: dfgdfgdfgdfgdfgdfgdfg
something
you typed: dfgdfgherherherherh
something
you typed: erherhreherherh
something
something
something
something
you typed: erhrherherherherhztzutzuztutzasdasdasdasd
something
something
you typed: asdasdasdasdasd
type in something: asdasd
有什么办法解决这个问题吗？
感谢
如果您不希望输入/输出出现乱码，则必须使其按顺序排列。
使用它的一个好方法是使用Lock。线程应该在print之前和使用input之前获取该Lock，然后释放它。
这是用Lock:修改的代码
import time
import threading
iolock = threading.Lock()
def screen_output():
while True:
iolock.acquire()
print("something")
iolock.release()
time.sleep(1)
def user_input():
while True:
iolock.acquire()
some_input = input("type in something: ")
print(f"you typed: {some_input}")
iolock.release()
# Let this thread sleep as well, otherwise it
# will crowd out the other thread.
time.sleep(1)
t1 = threading.Thread(target=screen_output, daemon=True)
t2 = threading.Thread(target=user_input, daemon=True)
t1.start()
t2.start()
while True:
pass