public void ImageThumbnailTest()
{
var Image = "http://file.bmob.cn/M00/06/70/wKhkA1PoFVCADG7fAAAUWOcV3Ew398.png";
var param = new ThumbnailParameter(200, Image);
var future = Bmob.ThumbnailTaskAsync(param);
FinishedCallback(future.Result, null);
}