修改账号注册方法，以及邮箱协议对接

services/email_service.go

@@ -0,0 +1,27 @@
+package services
+
+import (
+	"go-account-register/models"
+	"go-account-register/utils"
+
+	"gorm.io/gorm"
+)
+
+type EmailService struct {
+	db *gorm.DB
+}
+
+func InitEmailService() *EmailService {
+	db := utils.GetDB()
+
+	return &EmailService{db: db}
+}
+
+func (e *EmailService) GetEmailOne() *models.Email {
+	var email models.Email
+	err := e.db.Model(email).Where("use_status = ?", 0).First(&email).Error
+	if err != nil {
+		return nil
+	}
+	return &email
+}