package main

import (
"encoding/json"
"fmt"
)

/*
定义待序列化结构体
属性一定要可见，否则json包无法访问
*/
type Person struct {
Name string
Age int
Rmb float64
Gender bool
Hobbies []string
}

func NewPerson(name string,age int,rmb float64,gender bool,hobbies []string) *Person {
person :=new(Person)
person.Name = name
person.Age = age
person.Rmb = rmb
person.Gender = gender
person.Hobbies = hobbies
return person
}

/*
init函数会在main函数之前被系统调用
init函数用于main之前的初始化工作
*/
var person *Person
func init() {
fmt.Println("init")
person = NewPerson("张全蛋", 20, 0.5, true, []string{"抽烟", "喝酒", "烫头"})
fmt.Println(person)
}

/*序列化结构体*/
func main041() {
fmt.Println("main")
bytes, err := json.Marshal(*person)
if err != nil{
fmt.Println("序列化失败err=",err)
return
}
fmt.Println(string(bytes))
}

/*序列化Map*/
func main042() {
dataMap := make(map[string]interface{})
dataMap["Name"] = "张全蛋"
dataMap["Age"] = "20"
dataMap["rmb"] = "0.5"
dataMap["gender"] = true
dataMap["hobbies"] = []string{"抽烟", "喝酒", "烫头"}

fmt.Println("main")  
bytes, err := json.Marshal(dataMap)  
if err != nil{  
    fmt.Println("序列化失败err=",err)  
    return  
}  
fmt.Println(string(bytes))  

}

/*序列化切片（内置Map）*/
func main043() {
dataMap := make(map[string]interface{})
dataMap["Name"] = "张全蛋"
dataMap["Age"] = "20"
dataMap["rmb"] = "0.5"
dataMap["gender"] = true
dataMap["hobbies"] = []string{"抽烟", "喝酒", "烫头"}

dataMap2 := make(map\[string\]interface{})  
dataMap2\["Name"\] = "张lia蛋"  
dataMap2\["Age"\] = "20"  
dataMap2\["rmb"\] = "0.5"  
dataMap2\["gender"\] = true  
dataMap2\["hobbies"\] = \[\]string{"抽烟", "喝酒", "烫头"}

dataSlice := make(\[\]map\[string\]interface{}, 0)  
dataSlice = append(dataSlice, dataMap,dataMap2)

fmt.Println("main")  
bytes, err := json.Marshal(dataSlice)  
if err != nil{  
    fmt.Println("序列化失败err=",err)  
    return  
}  
fmt.Println(string(bytes))  

}

/*序列化切片（内置结构体对象）*/
func main() {
person1 := *NewPerson("张全蛋", 20, 0.5, true, []string{"抽烟", "喝酒", "烫头"})
person2 := *NewPerson("张俩蛋", 10, 0.5, true, []string{"抽烟", "喝酒", "烫头"})

dataSlice := make(\[\]Person, 0)  
dataSlice = append(dataSlice, person1, person2)

fmt.Println("main")  
bytes, err := json.Marshal(dataSlice)  
if err != nil{  
    fmt.Println("序列化失败err=",err)  
    return  
}  
fmt.Println(string(bytes))  

}