【Python】Learn Python the hard way, ex15 读取文件

最新推荐文章于 2019-01-30 16:09:33 发布

原创最新推荐文章于 2019-01-30 16:09:33 发布 · 839 阅读

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本文介绍了一种使用Python的sys模块中的argv功能来接收文件名作为参数并读取该文件内容的方法。通过两次读取同一文件，展示了如何利用Python内置函数open()打开文件并使用read()方法读取文件内容。

from sys import argv

script, filename = argv

txt = open(filename)

print "Here's your file %r:" % filename
print txt.read()

txt.close()

print "Type the filename again:"
file_again = raw_input("> ")

txt_again = open(file_again)

print txt_again.read()
txt_again.close()
"""
Test Result:

bogon:~ myRMBP$ python /Users/myRMBP/Desktop/ex15.py /Users/myRMBP/Desktop/ex15_sample.txt 
Here's your file '/Users/myRMBP/Desktop/ex15_sample.txt':
This is stuff I typed into a file.
It is really cool stuff.
Lots and lots of fun to have in here.
Type the filename again:
> /Users/myRMBP/Desktop/ex15_sample.txt
This is stuff I typed into a file.
It is really cool stuff.
Lots and lots of fun to have in here.

"""

心得：

通过argv来传递文件路径和名称