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                合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。 廣告
                Go語言中的map(映射、字典)是一種內置的數據結構,它是一個無序的key—value對的集合,比如以身份證號作為唯一鍵來標識一個人的信息。 ~~~ package main import "fmt" func main() { // map 的創建 var m1 map[int]string fmt.Println(m1 == nil) //true //m2, m3的創建方法是等價的 m2 := map[int]string{} m3 := make(map[int]string) fmt.Println(m2, m3) //map[] map[] m4 := make(map[int]string, 10) //第2個參數指定容量 fmt.Println(m4) //map[] // map 的初始化 //1、定義同時初始化 var m5 = map[int]string{1: "Bob", 2: "Peter", 3: "miller"} fmt.Println(m5) //map[1:Bob 2:Peter 3:miller] //2、自動推導類型 := m6 := map[int]string{1: "Bob", 2: "Peter", 3: "miller"} fmt.Println(m6) //map[1:Bob 2:Peter 3:miller] } ~~~
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