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() {
var (
names [3]string // The names of your three best friends
distances [5]int // The distances to five different locations
data [5]byte // A data buffer with five bytes of capacity
ratios [1]float64 // Currency exchange ratios only for a single currency
alives [4]bool // Up/Down status of four different web servers
zero [0]byte // A byte array that doesn't occupy memory space
)
// 1. Declare and print the arrays with their types.
fmt.Printf("names : %#v\n", names)
fmt.Printf("distances: %#v\n", distances)
fmt.Printf("data : %#v\n", data)
fmt.Printf("ratios : %#v\n", ratios)
fmt.Printf("alives : %#v\n", alives)
fmt.Printf("zero : %#v\n", zero)
// 2. Print only the types of the same arrays.
fmt.Println()
fmt.Printf("names : %T\n", names)
fmt.Printf("distances: %T\n", distances)
fmt.Printf("data : %T\n", data)
fmt.Printf("ratios : %T\n", ratios)
fmt.Printf("alives : %T\n", alives)
fmt.Printf("zero : %T\n", zero)
// 3. Print only the elements of the same arrays.
fmt.Println()
fmt.Printf("names : %q\n", names)
fmt.Printf("distances: %d\n", distances)
fmt.Printf("data : %d\n", data)
fmt.Printf("ratios : %.2f\n", ratios)
fmt.Printf("alives : %t\n", alives)
fmt.Printf("zero : %d\n", zero)
}
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