go Language naming specification

One Variable definition specification

Go Function names in languages 、 Variable name 、 Constant names 、 Type name 、 Statement label and package name, etc , All follow a simple naming rule ：

1. A name must have one letter （Unicode Letter ） Or start with an underscore , It can be followed by any number of letters 、 Number or underscore

2. Capital letters and lowercase letters are different ：Name and name It's two different variables

3. Keywords and reserved words are not recommended as variable names

And there is only one project main package , You can't run with more or less . Learning foundation stage , You can have more than one project main function , But we must use file Form operation , Cannot run as a package .

//  Hump body is recommended for variable definition 
	-AgeOfPerson   go Language and java Language recommendation ,python Not recommended 
	-age_of_person   Underline in , Not recommended （go Not recommended ,python recommend ）
// go Name of file , Underline is recommended （ Refer to the source code ）
	-java In language ： Hump is recommended for variables and file names 
	-Python in ： It is recommended to underline variable names and file names 

Two Keywords and reserved words

Go What are the key words in a language 25 individual ; Keywords cannot be used for custom names , It can only be used in specific grammatical structures .37 A reserved word , It mainly corresponds to built-in constants 、 Types and functions

// 25 Key words 
break      default       func     interface   select
case       defer         go       map         struct
chan       else          goto     package     switch
const      fallthrough   if       range       type
continue   for           import   return      var
//37 A reserved word 
 Built-in Constants : true false iota nil

 Built in type :  int int8 int16 int32 int64
          uint uint8 uint16 uint32 uint64 uintptr
          float32 float64 complex128 complex64
          bool byte rune string error

 Built-in functions : make len cap new append copy close delete
          complex real imag
          panic recover