|string> */ public function rules(): array { return [ 'username' => 'required', 'code' => 'required', 'new_password' => 'required|min:6|regex:/^(?=.*[a-z])(?=.*[A-Z])(?=.*\d)[a-zA-Z\d]{6,}$/',// 至少6位，包含大小写字母和数字,At least 6 digits, including upper and lower case letters and numbers ]; } }