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我正在使用 GoogleAPI 来获取行驶里程和行驶距离。这是我的源代码...

 dsAPI.ReadXml("http://maps.googleapis.com/maps/api/directions/xml?origin=" + strBaseLat + "," + strBaseLong + "&destination=" + strDStrLat + "," + strDStrLong + "&sensor=false");
 Thread.Sleep(3000);

编辑代码：

dsAPI.ReadXml("http://maps.googleapis.com/maps/api/directions/xml?origin=" + strBaseLat + "," + strBaseLong + "&destination=" + strDStrLat + "," + strDStrLong + "&sensor=false");
            Thread.Sleep(3000);
            if (dsAPI.Tables[0].Rows.Count > 0)
            {
                status = dsAPI.Tables[0].Rows[0]["status"].ToString();
            }
            if (status == "OK")
            {
                if (dsAPI.Tables[2].Rows.Count > 0)
                {
                    legid = Convert.ToInt32(dsAPI.Tables[2].Rows[0]["leg_Id"].ToString());
                }

                if (dsAPI.Tables[7].Rows.Count > 0)
                {
                    DataView dvMinutes = new DataView(dsAPI.Tables[7]);
                    dvMinutes.RowFilter = "leg_Id = '" + legid + "'";
                    decMinutes = Convert.ToDecimal(dvMinutes[0]["value"] as string);
                    Min = decMinutes / 60;
                    Min = decimal.Round(Min, 2, MidpointRounding.AwayFromZero);

                }
                if (dsAPI.Tables[8].Rows.Count > 0)
                {
                    DataView dvMiles = new DataView(dsAPI.Tables[8]);
                    dvMiles.RowFilter = "leg_Id = '" + legid + "'";
                    intMiles = Convert.ToInt32(dvMiles[0]["value"] as string);
                    Mil = Convert.ToDecimal(intMiles / 1609.34);
                    Mil = decimal.Round(Mil, 2, MidpointRounding.AwayFromZero);
                }

API 将根据经纬度返回详细信息。在下一行中，我给出了 Thread.sleep。

如果我给thread.sleep，代码的剩余部分是否会等待，直到服务返回结果。我已经签入了我的代码，有时剩下的部分在没有等待结果的情况下被执行。

有没有其他选择。

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