![run python code /
• REPL 也
$ python
Python 2.7.10 (default, Jul 14 2015, 19:46:27)
[GCC 4.2.1 Compatible Apple LLVM 6.0 (clang-600.0.39)] on
darwin
Type "help", "copyright", "credits" or "license" for more
information.
>>> print "hello world"
hello world
(Read-Eval-Print Loop)](https://image.slidesharecdn.com/python-tutor-151126065848-lva1-app6891/85/Python-Python-tutorial-24-320.jpg)
![set / 是
• 新 list
>>> set([1, 2, 3, 4, 1, 2])
set([1, 2, 3, 4])](https://image.slidesharecdn.com/python-tutor-151126065848-lva1-app6891/85/Python-Python-tutorial-44-320.jpg)
![( )
• * *
def print_values(**values):
for k in values:
print ‘%s => %s’ % (k, values[k])](https://image.slidesharecdn.com/python-tutor-151126065848-lva1-app6891/85/Python-Python-tutorial-53-320.jpg)
Python教程 / Python tutorial
- 2. Intro 时
- 3. Python /ˈpaɪθɑːn/ in us or /ˈpaɪθən/ in uk
- 4. Created By Guido van Rossum in 1989 - 1989 快以可 ⽣生起 快 “ ” - ABC 快 ⼤大 perl lisp -
- 5. Monty Python's Flying Circus BBC 来
- 8. • 了 了 • 了 中⼀一 了 • ( ) • 著 • ( & ) Language Features
- 9. • Beautiful is better than ugly • Explicit is better than implicit • Simple is better than complex • Complex is better than complicated • Readability counts The Zen of Python
- 10. there should be one and preferably only one obvious way to do it 快 • 和 • 发好
- 13. 为过成 “ ⾃自” “ 上” “ ”
- 14. Use
- 15. • Web Web • Scipy Numpy • 有 (google TensorFlow) • GUI PyQT wxWorks • ( perl bash) •
- 16. Python 也
- 17. Python
- 18. Raspberry Pi python GPIO Pi python
- 19. quick start
- 20. Installation / • brew install python • apt-get install python • yum install python • … also, binary Installer for Windows
- 21. Hello World print “hello world” • Just as simple as
- 22. Interrupter / 能 能 evaluate 能 有 有 能 * python 能 能
- 23. run python code / $ python helloWorld.py • python 有 • CPython • IPython • PyPy • IronPyton • Jython
- 24. run python code / • REPL 也 $ python Python 2.7.10 (default, Jul 14 2015, 19:46:27) [GCC 4.2.1 Compatible Apple LLVM 6.0 (clang-600.0.39)] on darwin Type "help", "copyright", "credits" or "license" for more information. >>> print "hello world" hello world (Read-Eval-Print Loop)
- 25. Mathematics / +, -, *, /, //, %, ** 出 (3.5 ) @ ==, >, <, >=, <=, != and, or, not =, +=, -=, *=, /=, %=
- 26. variables / x = 1 x = ‘hello world!’ • 了 快 • • 好
- 27. Mathematics / • (++) 不(--) x = 3 x += 1 x -= 2
- 28. indentation / if x >= 60: print ‘passed!’ else: print ‘failed!’ • { } python
- 29. • 快 • • 没
- 30. 多 • ...
- 31. comments / # comments in single line • • '''comments in multi line line 2 line 3 '''
- 32. conditions / if x >= 90: print ‘A’ elif x >= 75: print ‘B’ elif x >= 60: print ‘C’ else: print ‘D’ • if else elif
- 33. conditions / switch !!! 成if... elif... elif... else
- 34. loops / x = 0 while(x<100): x = 1 print x • while
- 35. loops / for i in range(100): print i • for..in..
- 36. loops / • continue break (c java ) x = 0 while True: x = x + 1 if x > 100: break
- 37. loops / • while for..in.. • do..while • until • goto
- 38. data structures
- 39. numbers / • int • float • complex
- 40. str / • 好 • % format •
- 41. list / • • 的 • (List comprehensions)
- 42. dict / 都( ) • • 的
- 43. tuple / 个 • 快 都 key • list , • 新
- 44. set / 是 • 新 list >>> set([1, 2, 3, 4, 1, 2]) set([1, 2, 3, 4])
- 45. bool / • True / False • python :
- 46. None • False •
- 47. • int • float • complex Mutable Immutable • str • list • set • dict • tuple •
- 48. functions
- 49. function / • 快 None def square(x): return x*x
- 50. • 要 快 快 def pow(x, y=2): return x**y
- 51. 好 在 • 好 在 pow(y=3, x=2)
- 52. • * def square_sum(*values): s = 0 for i in values: s += i*i return s
- 53. ( ) • * * def print_values(**values): for k in values: print ‘%s => %s’ % (k, values[k])
- 55. class / 了 好 class Animal(): def __init__(self, name): self.name = name def sayHi(self): print self.name, 'says Hi!'
- 56. builtin method / 要 • __init__ • __del__ • __repr__ • __str__ • __unicode__
- 58. class Cat(Animal): def __init__(self, name='kitty'): self.name = name def sayHi(self): print ‘hello %s mio!’ % self.name
- 59. 了 • 了 •
- 62. module / • 最 • sys.modules 开 开 PYTHONPATH 开 要
- 63. import / • 快 • (__import__) • execfile
- 64. input and output 下 下
- 65. IO • raw_input (python3 input) • sys.stdin sys.stdout • print
- 66. • open • read • write
- 69. • lambda ( ) • • map reduce filter •
- 70. — • dir hasattr getattr setattr • eval exec • locals globals
- 71. 要 • 成 __doc__ __name__ __file__ • : __dict__ __class__ • 了: __doc__ __module__ __dict__ __bases__
- 72. • yield 有 • 有 • 了 • C/C++ 分 python
- 73. summary
- 74. • 了 了 • 了 中⼀一 了 • ( ) • 著 • ( & ) Features /
- 76. 去 C JAVA C#
- 77. Python !!!