笨办法学python(不同版本的python代码差别)

最近在学习笨办法学python,由于安装的是python3，而教程使用的是python2，所以在代码部分有些会有差别导致编译出现问题，以此记录。

#python3
print (" Hello world!")
print (3 + 2 + 1 - 5 + 4 % 2 - 1 /4 + 6)
print ("what is 3 + 2?",3 + 2)

python2
print "Hello world!"
print 3 + 2 + 1 - 5 + 4 % 2 - 1 /4 + 6
print "what is 3 + 2?",3 + 2

#python3
print(formatter % (
    "I had this thing.",
    "That you could type up right.",
    "But it didn't sing.",
    "So I said goodnight."
    ))

#python2
print formatter % (
    "I had this thing.",
    "That you could type up right.",
    "But it didn't sing.",
    "So I said goodnight."
    )

#python3
print((end1 + end2 +end3 + end4 + end5 + end6),
(end7 + end8 +end9 + end10 + end11 + end12))

#python2
print end1 + end2 +end3 + end4 + end5 + end6,
print end7 + end8 +end9 + end10 + end11 + end12

#python3
print("." * 10 )# what'd that do?

end1 = "C"

#Python2
print "." * 10 # what'd that do?

end1 = "C"

#Python2
print """
There's something going on here.
With the three double-quotes.
We'll be able to type as much as we like.
Even 4 lines if we want,or 5,or 6.
"""

#Python3
print("""
There's something going on here.
With the three double-quotes.
We'll be able to type as much as we like.
Even 4 lines if we want,or 5,or 6.
""")