Url验证

 {url}占位符，对应columns里面title

"url": [    
    {
      "type": "url",
      "required": false,
      "isAdd": true,
      "isEdit": true,
      "min": 10,
      "message": "【{url}】格式不正确。"
    }
  ],

/// <summary>
      /// url 
      /// </summary>
      public const string Url = "^(https?|ftp|file)://[-A-Za-z0-9+&@#/%?=~_|!:,.;]+[-A-Za-z0-9+&@#/%=~_|]$";