小编rmb*_*mbq的帖子

我有这段代码:

private void AnswerToCe(int currentBlock, int totalBlock = 0)
{
    byte[] bufferToSend;
    byte[] macDst = mac;
    byte[] macSrc = ConnectionManager.SInstance.GetMyMAC();
    byte[] ethType;
    byte[] header;

    if (Function == FlashFunction.UPLOAD_APPL || Function == FlashFunction.UPLOAD_BITSTREAM)
    {
        ethType = BitConverter.GetBytes((ushort)EthType.ETH_TYPE_UPLOAD);
        ethType = new byte[] { ethType[1], ethType[0] };
        header = Header.GetBytes((ushort)binaryBlocks.Count, (ushort)(currentBlock + 1), (ushort)binaryBlocks[currentBlock].Length);
        int index = 0;
        bufferToSend = new byte[macDst.Length + macSrc.Length + ethType.Length + header.Length + binaryBlocks[currentBlock].Length];
        Array.Copy(macDst, 0, bufferToSend, index, macDst.Length);
        index += macDst.Length;
        Array.Copy(macSrc, 0, bufferToSend, index, macSrc.Length); …

在我的程序中我有~40个运行任务,定义如下:

private void StartTryReconnectTask() {
       TryReconnectCTKS = new CancellationTokenSource();
       TryReconnectTask = new Task(this.TryReconnect, TryReconnectCTKS.Token);
       TryReconnectTask.Start();
}

在TryReconnect()内部,有一个无限的while循环,只有在任务被取消时才会停止.这里的一切似乎都很好.

然后我需要在按钮点击上启动任务(不是无限):

private void ExecuteRepairCommand(object o) {
       Task.Run(() => {
         ...
       });
    }

启动这项新任务需要大约30/40秒.如果我使用线程一切正常,线程立即启动.为什么？是什么原因？