制作了一个延时开和延时关的结构，该结构采用线程来完成两个功能，可以实现IO板卡的信号输出并且调用函数后立刻返回，不会阻塞程序-Produced a time delay and delay-related open structure that uses the thread to complete the two functions can be achieved IO board and the signal output after the function call returns im