六.变量\字符编码 Variables are used to store information to be referenced and manipulated in a computer program. They also provide a way of labeling data with a descriptive name, so our programs can be understood more clearly by the reader and ourselves. It
三.Python 2 or 3? In summary : Python 2.x is legacy, Python 3.x is the present and future of the language Python 3.0 was released in 2008. The final 2.x version 2.7 release came out in mid-2010, with a statement of extended support for this end-of-lif