基于Python3.6

习题16

from sys import argvscript, filename = argvprint("We're going to erase %r." % filename)
print("If you don't want that, hit CTRL-C (^C).")
print("If you do want that, hit RETURN.")input("?")print("Opening the file...")
target = open(filename, 'w')print("Truncating the file. Goodbye!")
target.truncate()print("Now I'm going to ask you for three lines.")line1 = input("line 1: ")
line2 = input("line 2: ")
line3 = input("line 3: ")print("I'm going to write these to the file.")target.write(line1)
target.write("\n")
target.write(line2)
target.write("\n")
target.write(line3)
target.write("\n")print("And finally, we close it.")
target.close()

TXT文档内容：

To all the people out there.
I say I don't like my hair.
I need to shave it off.

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笨办法学Python3 习题16

基于Python3.6

习题16

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