Question

是否有办法将全部印刷产出节省到金字塔档案中? 请允许我说,我有这两条文字,我希望将印刷产出节省到一个名为<编码>产出.txt的文件。

print ("Hello stackoverflow!")
print ("I have a question.")

I want the output.txt file to to contain

Hello stackoverflow!
I have a question.

Answer 1

www.un.org/spanish/ga/president 最佳做法是使用<条码>的<条码/代码>栏号打开<>开放式功能的文档,以确保文件在栏目末关闭:

with open("output.txt", "a") as f:
  print("Hello stackoverflow!", file=f)
  print("I have a question.", file=f)

http://docs.python.org/3.5/library/Functions.html#print”rel=“noreferer” 关于<代码>的灰色文件:

file case must be an Object with a write(string) means; if it is not present or None,sys.stdout will be used.

And the documentation for open:

开放式<编码>file,并交还相应的文档标。如果档案不能开启,则提出OSError。

The "a" as the second argument of open means "append" - in other words, the existing contents of the file won t be overwritten. If you want the file to be overwritten instead at the beginning of the with block, use "w".

《<<>代码>和栏目是有用的,因为否则,你需要记住,如:

f = open("output.txt", "a")
print("Hello stackoverflow!", file=f)
print("I have a question.", file=f)
f.close()

Answer 2

你们可以把 st改成“产出.txt”档案:

import sys
sys.stdout = open( output.txt , wt )
print ("Hello stackoverflow!")
print ("I have a question.")

Answer 3

另一种无需更新甲型六氯环己烷法的方法是通过 con/strong>。

基本上,你的字母<代码>(>>(>)与往常一样,把文字从指挥线上说出来,并使用指挥线重新定向。与此类似:

$ python ./myscript.py > output.txt

页: 1

Edit:
To address the comment; for Windows, change the forward-slash to a backslash.
(i.e. .myscript.py)

Answer 4

伐木模块的使用

def init_logging():
    rootLogger = logging.getLogger( my_logger )

    LOG_DIR = os.getcwd() +  /  +  logs 
    if not os.path.exists(LOG_DIR):
        os.makedirs(LOG_DIR)
    fileHandler = logging.FileHandler("{0}/{1}.log".format(LOG_DIR, "g2"))
    rootLogger.addHandler(fileHandler)

    rootLogger.setLevel(logging.DEBUG)

    consoleHandler = logging.StreamHandler()
    rootLogger.addHandler(consoleHandler)

    return rootLogger

2. 结论:

logger = init_logging()

开始伐木/产出:

logger.debug( Hi! :) )

Answer 5

另一种变式可以是...... 之后,确保结案

import sys
file = open( output.txt ,  a )
sys.stdout = file

print("Hello stackoverflow!") 
print("I have a question.")

file.close()

Answer 6

保证进口sys模块。印刷你们想要书写和想要挽救的东西。在sys模块中,我们有stdout,该模块接收产出和储存。然后,sys.stdout。这将节省产出。

import sys
# Save a reference to sys.stdout file object
stdout = sys.stdout

print("Hello stackoverflow!" 
      "I have a question.")

file = open("/home/scilab/Desktop/test.txt", "a")
sys.stdout = file
# main code ...

# Restore stdout to the sys.stdout file object you saved
# This prevents stdout from erroring out on a closed file     # object
sys.stdout = stdout
# Don t close stdout directly
file.close()

Answer 7

我的投入文件是“投入.txt”,产出文件是“产出.txt”。

让我们考虑投入文件的细节如下:

5
1 2 3 4 5

法典:

import sys

sys.stdin = open("input", "r")
sys.stdout = open("output", "w")

print("Reading from input File : ")
n = int(input())
print("Value of n is :", n)

arr = list(map(int, input().split()))
print(arr)

因此,从投入文件来看,产出将在产出档案中显示。

详情请见

Answer 8

自434年以来,我们有 redirect_stdout :

import contextlib

with open( output.txt ,  w ) as f, contextlib.redirect_stdout(f):
    print("Hello stackoverflow!")
    print("I have a question.")

Answer 9

a. 添加阴.的回答;为了让 p重新印制到 con子,而不是你必须做的档案:

import sys
list = [10,20,30,40,50]

with open( output.txt ,  w ) as f:
    old_stdout = sys.stdout
    sys.stdout = f
    print(list)
    sys.stdout = old_stdout

PS: All credit to https://www.datasciencelearner.com/get-python-output-in-text-file/。 - 即发现信息。 (我作出这一答复是因为我没有声誉来评论先前的答复。)

Edit:我编辑了该守则,以使用一个变量储存<代码>sys.stdout的旧价值,然后重新命名;而不是使用<代码>sys.__stdout_;因为前者在上讨论更为安全。

友情链接