我是 Golang 的新手，正在從 Node.js 服務(wù)器切換到 Golang 服務(wù)器，我正在嘗試重寫我之前為 Node 編寫的應(yīng)用程序。我想在用戶登錄時設(shè)置模板變量，但我不確定如何設(shè)置，是的，我試過在谷歌上搜索它。這是我的注冊用戶控制器：func (c User) RegisterUser(user_email, user_password,    user_password_confirmation, user_first_name,    user_last_name string) revel.Result {    // Validate Email    c.Validation.Required(user_email).Message("Username is required")    c.Validation.Email(user_email).Message("Email is not a valid email")    c.Validation.MinSize(user_email, 5).Message("Email must be greater than 5 characters")    // Validate Password    c.Validation.Required(user_password).Message("Password is required")    c.Validation.MinSize(user_password, 5).Message("Password must be greater than 5 characters.")    // Validate Password Confirmation    c.Validation.Required(user_password_confirmation).Message("Password Confirmation is required")    c.Validation.MinSize(user_password_confirmation, 5).Message("Password must be greater than 5 characters.")    c.Validation.Required(user_password == user_password_confirmation).Message("Your passwords do not match")    // Validate First Name    c.Validation.Required(user_first_name).Message("First Name is required")    c.Validation.MinSize(user_first_name, 3).Message("Your First Name must be greater than 3 characters")    // Validate Last Name    c.Validation.Required(user_last_name).Message("Last Name is required")    c.Validation.MinSize(user_last_name, 3).Message("Your Last Name must be greater than 3 characters")    // If anything wasn't right, set flash and display errors to user    if c.Validation.HasErrors() {        c.Validation.Keep()        c.FlashParams()        return c.Redirect(User.Register)    }我已經(jīng)讀過，c.RenderArgs但它似乎沒有做我想要的。我希望能夠設(shè)置用戶的用戶名，以便我可以在導(dǎo)航欄中顯示它，以便他們知道他們已登錄。