Golang foundation - data type

1、 data type

1） Basic types

• Numbers
  • Integer types ： int8、int16、int32、int64、unit8、unit16、unit32、unit64
  • Floating point type ： float32、float64
  • Other number types

  int:  32  or  64  position 
  uint:  32  or  64  position 
  byte:  uint8  Type alias for 
  rune:  int32  Type alias for 	
  uintptr:   Unsigned integer , Used to store a pointer 
  

• Boolean type （bool）： Can only be constants true perhaps false.
• character string （string）

2） The compound type

• Array
• Structure . By combining simple types , To express more complex data structures .

3） Reference type

• The pointer
• section （slice）
• map
• channel
• interface（ Interface ）
• Function type

When declaring variables of reference type , The variables created are called headers （header） value .

In terms of technical details , String is also a reference type .