DimOutputAsciiAsBooleanDimInputStringAsStringDimOutputStringAsString'变量定义OptionExplicit'强制显式声明DimComSwitchAsBoolean'串口开关状态判断DimFileDataAsString'要发送的文件暂存DimSendCountAsLong'发送数据字节计数器DimReceiveCountAsLong'接收数据字节计数器DimInputSignalAsString'接收缓冲暂存DimOutputSignalAsString'发送数据暂存DimDisplaySwitchAsBoolean'显示开关DimModeSendAsBoolean'发送方式判断DimSavetimeAsSingle'时间数据暂存延时用DimSaveTextPathAsString'保存文本路径'网页超链接申明PrivateDeclareFunctionShellExecuteLib"shell32
dll"Alias"ShellExecuteA"(ByValhwndAsLong,ByVallpOperationAsString,ByVallpFileAsString,ByVallpParametersAsString,ByVallpDirectoryAsString,ByValnShowCmdAsLongAsLongPrivateSubCloseCom('关闭串口OnErrorGoToErrIfMSComm
PortOpen=TrueThenMSComm
PortOpen=False'先判断串口是否打开,如果打开则先关闭txtstatus
Text="STA