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"
// ---------------------------------------------------------
// EXERCISE: Assign empty slices
//
// Assign empty slices to all the slices that you've declared in the previous
// exercise, and print them here.
//
//
// EXPECTED OUTPUT
// names : []string 0 false
// distances: []int 0 false
// data : []uint8 0 false
// ratios : []float64 0 false
// alives : []bool 0 false
// ---------------------------------------------------------
func main() {
var (
names []string // The names of your friends
distances []int // The distances
data []byte // A data buffer
ratios []float64 // Currency exchange ratios
alives []bool // Up/Down status of web servers
)
fmt.Printf("names : %T %d %t\n", names, len(names), names == nil)
fmt.Printf("distances: %T %d %t\n", distances, len(distances), distances == nil)
fmt.Printf("data : %T %d %t\n", data, len(data), data == nil)
fmt.Printf("ratios : %T %d %t\n", ratios, len(ratios), ratios == nil)
fmt.Printf("alives : %T %d %t\n", alives, len(alives), alives == nil)
}
你可能感兴趣的文章
go main
go main
go main
go main
go main
go Header
go main
go main
go main
go main