C/C++：从基础语法到优化策略（基础）笔记

• Week 1
  • 1.3 compile and link
    #pragma once
    只要在头文件的最开始加入这条指令就能够保证头文件被编译一次.
    
    debug:
    1.编译错误
    2.链接错误
    3.运行时错误
  • 1.4 preprocessor-and-macros
    只占一行
  • 1.5 simple-input-and-output
• Week 2

  • 2.1 integer-numbers
    
    
    
    答案为-32768

  • 2.2 more-integer-types
    
    
    
    
    
    

  • 2.3 floating-point-numbers
    
    
    
    答案为0

怎么知道浮点数的步长

• 2.4 arithmetic-operators
  
  浮点数默认是double
  
  
  
  
  
• Week 3:
  • 3.1 if-statement
    
  • 3.2-conditions
    
    
  • 3.3-while-loop
• Week 4:Data Structures
  • 4.1-arrays
  • 4.2-strings