main.go 源码
// Copyright © 2018 Inanc Gumus
// Learn Go Programming Course
// License: https://creativecommons.org/licenses/by-nc-sa/4.0/
//
// For more tutorials : https://learngoprogramming.com
// In-person training : https://www.linkedin.com/in/inancgumus/
// Follow me on twitter: https://twitter.com/inancgumus
package main
import "fmt"
func main() {
// `safe`'s value is `false`
var safe bool
// `safe`'s value is now `true`
// `speed` is declared and initialized to `50`
// redeclaration only works when
//
// at least one of the variables
// should be a new variable
safe, speed := true, 50
fmt.Println(safe, speed)
// EXERCISE
//
// Declare the speed variable before
// the short declaration "again"
//
// Observe what happens
}
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