如何返回我用Gorm的 Create() 創(chuàng)建的記錄？例如，我Create()在下面的代碼中創(chuàng)建了一個(gè)用戶(hù)：package mainimport (    "apiserver/model"    "fmt"    "github.com/jinzhu/gorm"    _ "github.com/jinzhu/gorm/dialects/postgres")func main() {    db, err := gorm.Open("postgres", "host=127.0.0.1 port=5432 user=postgres dbname=exampledb password=123 sslmode=disable")    if err != nil {        fmt.Println(err)    }    defer db.Close()       db.AutoMigrate(&model.User{})    user := User{Name: "Jack", Age: 18}    db.Create(&user)}我想退回這條user記錄，怎么辦？更新：我需要這樣做嗎Where()？像這樣：db.Where("name = ?", "Jack").First(&user)