清除输出并用python重写
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Clear output and rewrite it in python
提问by Anton M
Hi I'm trying to make a tic tac toe game in python and I've run into a problem.
嗨，我正在尝试用 python 制作井字游戏，但遇到了一个问题。
As you can see on the picture it rewrites the playing board after your input, what I want it to do is to clear the output and then rewrite the board. So instead of just printing new boards all the time it only clears the current board and rewrites it. I've searched on "clear output" etc, but all I find is these kind of codes:
正如您在图片上看到的那样，它在您输入后重写了播放板，我想要它做的是清除输出然后重写板。因此，它不是一直打印新板，而是只清除当前板并重写它。我搜索了“清除输出”等，但我发现的只是这些代码：
import os
clear = lambda : os.system('cls')
or
或者
import os
def clear():
os.system( 'cls' )
Using this clear function above don't work for me.
It only returns this symbol:
使用上面的这个 clear 函数对我不起作用。它只返回这个符号：
I am currently writing my code in Pycharm and just to make it clear, I wanna keep it in pycharm.
我目前正在 Pycharm 中编写代码，为了清楚起见，我想将其保留在 pycharm 中。
回答by devil in the detail
Adding following in jupyter worked for me:
在 jupyter 中添加以下内容对我有用：
from IPython.display import clear_output
clear_output(wait=True)
回答by Barry Scott
I see a syntax error from your code, you are missing the ":".
我从您的代码中看到语法错误，您缺少“:”。
clear = lambda : os.system('cls')
However avoid lambda and define a function for clear because it is easier to read.
然而，避免使用 lambda 并定义一个 clear 函数，因为它更容易阅读。
def clear():
os.system( 'cls' )
then you can clear the window with:
然后您可以使用以下命令清除窗口：
clear()
回答by kmaork
clscommand will not clear the output when you run your code in pycharm. It will work if you run it in cmd - python <pathTOPyFile>
cls在 pycharm 中运行代码时，命令不会清除输出。如果您在 cmd 中运行它，它将起作用-python <pathTOPyFile>
回答by kmaork
You can include the following in the beginning of your code, to make it call itself from cmd and exit if it isn't in cmd already:
您可以在代码的开头包含以下内容，使其从 cmd 调用自身并退出（如果它不在 cmd 中）：
import os
import sys
import subprocess
clear = lambda: os.system('cls')
if len(sys.argv) < 2:
subprocess.call('cmd /K python "' + sys.argv[0] + '" cmd')
exit(0)
print 'this was cleared'
clear()
回答by erfan karimian
if you use it in linux
如果你在linux中使用它
def clear():
os.system( 'clear')
回答by Specter Paul
First, install IPython using the Python package installer pip:
首先，使用 Python 包安装程序 pip 安装 IPython：
pip install IPython
In your script write the following
在你的脚本中写下以下内容
form IPython.display import clear_output
I guess by now it should be working
我想现在它应该可以工作了
