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 immediately without blocking the program