A_Byte_Of_Python_1

A byte of Python

Success in life is a matter not so much of talent and opportunity as of concentration and perseverance.

​ —- C.W. Wendte

Chapter 2. Introduction

Features of Python

• Simple
• Easy to Learn
• Free and Open Source
• High-level Language
• Portable
• Interpreted
• Object Oriented
• Extensible
• Embeddable???
• Extensive Libraries

Chapter 4. First Steps

• Vim
• PyCharm
• Emacs

Chapter 5. Basics

print("Hello, World!") #Note that print is a statement

• Constant:
  
  • Numbers: (integers and float)
  • Strings: (immutable)
  • Single quote
  • double quote
  • triple quote: for multi-line string.
  • format method
    
    • format()
    • '{0:.3f}'.format(1.0/3)
    • '{0:_^11}'.format('Hello')
  • escape sequences:\\ \n \t
  • Raw string: no special processing
• Variable:
• Data Types:
  
  • numbers
  • strings
  • classes
• Object

#程序可以换行s = 'this is a string.\This continues the string.'print(s)#same as print(\    s)