摘要： 1 Imports System.Threading 2 Imports System.IO.Ports 3 Imports System 4 Public Class Form1 5 Dim str As String 6 Dim str5 As String 7 Dim flag(1) As Byte '给单片机发送开始停止的标示，flag（0）=1时开始采集，flag(0)=0时结束采集 8 9 Private Sub Btn_Start_Click(ByVal sender As System.Object, ByVal e As ... 阅读全文