1.UserRequest表单验证：

public function rules()
    {
        return [
            'name' => 'required|between:3,25|regex:/[\w\x{4e00}-\x{9fa5}]{2,25}/u|unique:users,name',
            'password' => 'required|string|min:6',
            'verification_key' => 'required|string',
            'verification_code' => 'required|string',
        ];
    }

2.测试：