Go語言-切片和map
阿新 • • 發佈:2018-06-17
package pri code [] print UNC AR make 運行 實例
package main
import ( "fmt" ) func main() { arr := make([]int, 0) //arr := make([]int) is wrong //arr := make([]int, 100) is right arr = append(arr, 1) arr = append(arr, 2) arr = append(arr, 3) arr = append(arr, 4) mymap := make(map[int]string) //mymap := make(map[int]string, 0) //mymap := make(map[int]string,1) is right mymap[0] = "10" mymap[1] = "110" mymap[2] = "1110" for _, val := range arr { fmt.Println("val:", val) } for _, val := range mymap { fmt.Println("val:", val) } fmt.Println() } 運行結果 val: 1 val: 2 val: 3 val: 4 val: 10 val: 110 val: 1110
Go語言-切片和map