from sys import argv
script, filename = argv
txt = open(filename)
print ("Here's your file %r:" % filename)
print (txt.read())
print ("Type the filename again:")
file_again = input("> ")
txt_again = open(file_again)
print (txt_again.read())
open(filename)就是打开文件命令 filename填写文件路径（路径中不要出现中文）
print (txt.read()) 打印读取的内容
WX20170707-152203@2x.png
