按照接口文檔，整體流程都跑通了，就是獲取UUID列表的那幾個函數(shù)不穩(wěn)定；經(jīng)過調(diào)試，UUID數(shù)組指向的內(nèi)存地址明明有數(shù)據(jù)，但是讀到的數(shù)組長度參數(shù)好幾次都是0，需要去多次連續(xù)調(diào)用才有可能有值，非常令人抓狂！

????????///?
????????///?獲取設(shè)備所有服務(wù)
????????///?
????????///?設(shè)備句柄
????????///?設(shè)備服務(wù)存放數(shù)組
????????///?服務(wù)個數(shù)
????????///?
????????[DllImport(@".\Lib\WCHBLEDLL.dll")]
????????public?extern?static?byte?WCHBLEGetAllServicesUUID(IntPtr?pDev,?IntPtr?pUUIDArry,?IntPtr?pUUIDArryLen);

截取了關(guān)鍵部分，有按照文檔的順序調(diào)用接口

??//4.?獲取設(shè)備服務(wù)標識ID
????????????ushort?tryGetCount?=?10,?k?=?0,?deviceUUIDsLength?=?0;
????????????while?(k++?<=?tryGetCount)
????????????{
????????????????//?加點延時
????????????????//Thread.Sleep(3000);
????????????????Console.WriteLine($"*******************第{k}次獲取服務(wù)UUID*******************");
????????????????IntPtr?pDeviceServiceUUIDsBuff?=?Marshal.AllocHGlobal(Marshal.SizeOf()?*?100);
????????????????IntPtr?pDeviceServiceUUIDsLengthBuff?=?Marshal.AllocHGlobal(Marshal.SizeOf());
????????????????var?getAllServicesUUIDResult?=?WCH_Lib.WCHBLEGetAllServicesUUID(deviceConnectHandle,?pDeviceServiceUUIDsBuff,?pDeviceServiceUUIDsLengthBuff);
????????????????Console.WriteLine($"查詢設(shè)備服務(wù)UUID，res?=?{getAllServicesUUIDResult}");

????????????????unsafe
????????????????{
????????????????????deviceUUIDsLength?=?*(ushort*)pDeviceServiceUUIDsLengthBuff;
????????????????????Console.WriteLine($"服務(wù)UUID數(shù)量?=?{deviceUUIDsLength}");
????????????????????for?(ushort?i?=?0;?i?<?deviceUUIDsLength;?i++)
????????????????????{
????????????????????????ushort?uuid?=?*(ushort*)(pDeviceServiceUUIDsBuff?+?i?*?Marshal.SizeOf());
????????????????????????Console.WriteLine($"{uuid.ToString("X4")}");
????????????????????}
????????????????}
????????????????Marshal.FreeHGlobal(pDeviceServiceUUIDsLengthBuff);
????????????????Marshal.FreeHGlobal(pDeviceServiceUUIDsBuff);
????????????????Console.WriteLine("**************************************************************");
????????????????if(deviceUUIDsLength?>?0)
????????????????{
????????????????????break;
????????????????}
????????????}

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