使用go语言中的xrom和Sync2创建并添加数据

package main

import (
	"fmt"
	_ "github.com/go-sql-driver/mysql"//必须导入，手动添加
	"xorm.io/core"
	"xorm.io/xorm"
)


func main() {
	engine, err := xorm.NewEngine("mysql", "root:123@/test6?charset=utf8") // dbname是taoge
	if err != nil {
		fmt.Println(err)
		return
	}
	if err := engine.Ping();err !=nil{
		fmt.Println(err,"数据库连接失败！")
		return
	}
	defer engine.Close()
	fmt.Println("数据库连接成功！")


	engine.SetMapper(core.GonicMapper{})
	//建立表字段
	engine.Sync2(new(PresonTable))
	presonEmpty,err := engine.IsTableEmpty(new(PresonTable))
	if err !=nil{
		panic(err.Error())
	}
	if presonEmpty{
		fmt.Println("人员表为空！")
	}else{
		fmt.Println("人员表不为空！")
	}
	engine.Sync2(new(CityTable))
	cityEmpt,err := engine.IsTableEmpty(new(CityTable))
	if err != nil{
		panic(err.Error())
	}
	if cityEmpt{
		fmt.Println("城市表为空")
	}else {
		fmt.Println("城市表不为空")
	}
	var city CityTable
	c,_:=engine.Where("city_name=?","上海").Get(&city)
	if c{
		fmt.Println("数据已经存在",city)
	}else {
		fmt.Println("数据不存在")
		doc0 := CityTable{"上海",120.21,30.12}
		i0,_ :=engine.InsertOne(doc0)
		fmt.Println("新增结果为",i0)
	}
	var per  PersonTable
	b,_:=engine.Where("preson_name = ?","海燕").Get(&per)
	if b{
		fmt.Println("数据已经存在",per)
	}else {
		fmt.Println("数据不存在")
		doc1:=PresonTable{0,"海燕",18,0}
		i1,_ :=engine.InsertOne(doc1)
		fmt.Println("新增结果",i1)
	}

}

type PersonTable struct {
	Id int64 `xorm:"pk autoincr"`
	PersonName string `xorm:"varchar(24)"`
	PersonAge int `xrom:"int default 0"`
	PersonSex int `xrom:"notnull"`

}

type CityTable struct {
	CityName string
	CityLongitude float32
	CityLatitude float32
}