用Labview实现字符串在上位机和下位机间的通讯。发送字符串时，要先运行下位机的程序，不带地址，收数据的机器。总之,要(Using Labview to implement the communication between the host computer and the lower computer. When you send a string, you must run the program of the lower computer, without the address, and the machine that collects the data. In short, to)