[Python path] Brief introduction

Python Introduction

#python是一个什么样的语言?
Compile-and-interpret
Static language and Dynamic language
Strongly typed definition language and weak type definition language
Python is a dynamically explanatory, strongly typed definition language.

#Python的优缺点
# #优点
Python's positioning is "elegant", "clear", "simple"
Very high development efficiency
Advanced language
Portability
Scalability
can be embedded

# #缺点
Slow speed
Code cannot be encrypted
Threads cannot take advantage of multi-CPU issues

#Python解释器
CPython, IPython, PyPy, Jython, IronPython
Python has a lot of interpreters, but the most widely used is cpython. If you want to interact with the Java or. NET platform, the best approach is not to use Jython or IronPython, but to interact via network tuning to ensure the independence of each program. PyPy can make a mess.

#Python发展史
In 1989, in order to pass the Christmas holiday, Guido began to write the Python language compiler.
1991, the first Python compiler was born.
Python first web framework Zope born
Django November 2004 births
Python 2.7-july 3, 2010
Python 3.5-september 13, 2015

#2. * The difference from 3.*
Unicode, print, twisted not supported 3.*
#Python安装
https://www.python.org/downloads/

#Hello World Program

```
#!/usr/bin/env Pypthon

Print ("Hello world!")
```

[Python path] Brief introduction