python_day1学习笔记

一、Python 2.7.x 和 3.x 版本的区别小结

• print函数

1、python2

1 import platform
2
3 print ‘Python’, platform.python_version()
4 print ‘Hello, World!’
5 print(“Hello,World!’)
6 print "text", ; print ‘print more text on the same line‘

输出结果：1 Python 2.7.6
2 Hello, World!
3 Hello, World!
4 text print more text on the same line

2、python3

1 import platform
2
3 print(‘Python‘, platform.python_version())
4 print(‘Hello, World!‘)
5
6 print("some text,", end="")
7 print(‘ print more text on the same line‘)

结果输出：
1 Python 3.5.1
2 Hello, World!
3 some text, print more text on the same line

1 >>> print ‘Hello,World!‘
2   File "<stdin>", line 1
3     print ‘Hello,World!‘
4                        ^
5 SyntaxError: Missing parentheses in call to ‘print‘

二、用户输入及输出

三、while循环