Golang 学习笔记-- 快速上手/重点整理 - 2 - var, const

print

import ("fmt")
fmt.Println('hello')

宣告 变数

var variablename type = value
var a int = 1
var a = 1


#仅用於function内
variablename := value

多变数

  var a, b, c, d int = 1, 2, 3, 4
  var a, b = 1, "Hi"
  a, b := 3, "Hi"
  
  var (
     w = 4
     x string
     y int = 1
     z string = "good"
  )

变数类型

• int
• float32
• string
• bool

const

宣告方法与 variable 类似

const CONSTNAME type = value
const a = 'hi'

多个 const 宣告

const (
  w int = 1
  x = 2
  y = "Hi"
)