public async Task AsyncBtreeSearchTestForChinese()
{
const int cityId = 2163;
const string region = "中国|0|广东省|深圳市|鹏博士";
var result = await _dbSearcher.AsyncBtreeSearch("101.105.35.57");
Assert.AreEqual(result.CityID, cityId);
Assert.AreEqual(result.Region, region);
}