|string> */ public function rules(): array { return [ 'email' => ['required_without:username', 'nullable', 'email', 'max:255'], 'username' => ['required_without:email', 'nullable', 'string', 'max:100'], ]; } /** * 定义邮箱找回密码请求的中文错误提示。 * * @return array */ public function messages(): array { return [ 'email.email' => '邮箱格式不正确，请重新输入。', 'email.max' => '邮箱长度不能超过 255 个字符。', 'email.required_without' => '请输入绑定邮箱或用户昵称。', ]; } }