Python——打開了文件一定要關閉！

 

#使用笨方法學Python遇到的第一個問題 —— 如何關閉打開的文件
#這足以證明我的C都還給老師了_(:з」∠)_我都不好意思說我還學過C++還學過Android TuT
from sys import argv

script, filename = argv

txt = open(filename)

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

print "I'll also ask you to type it again:"
file_again = raw_input("> ")

txt_again = open(file_again)

print txt_again.read()

txt.close() #關閉打開的文件
txt_again.close()