区块链技术（二）Go语言——数组篇

/*
* @Author: mrtao
* @Date:   2018-08-14 14:48:25
* @Last Modified by:   mrtao
* @Last Modified time: 2018-08-14 15:55:51*/
package mainimport "fmt"func main() {// 指针var p *inta := 10p = &a// p = new(int)// *p = 10fmt.Println(*p)// 数组var id [50]intfmt.Println(len(id))// for i := 0; i < len(id); i++ {// 	fmt.Println(id[i])// }id2 := [3]int{1, 2, 3}fmt.Println(id2)// 切片b := []int{1, 2, 3, 4, 5} //不定长数组s1 := b[1:5]              // array[low:high]  从low开始， high-low个元素fmt.Println(s1)c := []int{}c = append(c, 1)fmt.Println(c)// 切片作为参数传递时为 饮用传递// map[key] valuem1 := map[int]string{1: "mike",2: "yoyo",3: "xxx", //结尾还必须得有这个逗号 0.0}for key, val := range m1 {fmt.Println(key, val)}// map 修改m1[1] = "ccc"fmt.Println(m1)// map 扩容m1[4] = "dsa"fmt.Println(m1)// map 删除delete(m1, 4)fmt.Println(m1)// map 也是引用传递// 结构体type Student struct {id   intname string}var s Students.id = 1s.name = "das"fmt.Println(s)}