在go中會經常拼接複雜的結構和拼接複雜的json字串

go-sampleJson簡單測試

package main

import (
    "fmt"
    sampleJson "go-simplejson-master"
)

type User struct {
    Name string
    Age  int
}

func main() {
    j, _ := sampleJson.NewJson([]byte(`{"Addr":["anhui","bengbu","huiayuan"],"name":"Tsong","Age":28}`))
    // fmt.Println()
 

    s, _ := j.Get("name").String()

    fmt.Println(s)

    v, _ := j.Get("Addr").Array()
    fmt.Println(v)
}

go sort() 簡單排序的實現

package main

import (
    "fmt"
    "sort"
)

type User struct {
    Name string
    Age  int
}

type Users []User

type UserMethod interface {
    Len() int
    Less(i, j int
 
) bool
    Swap(i, j int)
}

func (u Users) Len() int {
    return len(u)
}

func (u Users) Less(i, j int) bool {
    return u[i].Age > u[j].Age
}

func (u Users) Swap(i, j int) {
    u[i], u[j] = u[j], u[i]
}

func main() {

    a := Users{
        {
            Name: "2",
            Age:  20,
        },
        {
            Name: "4"
 
,
            Age:  40,
        },
        {
            Name: "1",
            Age:  10,
        },
        {
            Name: "3",
            Age:  30,
        },
    }

    // a := Users{}
    // u := User{
    //  Name:"1",
    //  Age :10,
    // }
    fmt.Println(a.Len())
    fmt.Println(a)
    fmt.Println(a.Less(1, 2))
    a.Swap(1, 2)
    fmt.Println(a)
    sort.Sort(a)
    fmt.Println(a)
    sort.Reverse(a)
    fmt.Println(a)
    // a.Swap()
    // fmt.Println(a)
}