  
1.ΪͨŲԹʵ,ӴΪ
(1)ò
   ˲Сںѡ񡱿򡢡ѡ񡱿򼰡򿪴ڡťںԶ
   ȡ,ʿѡ񡣡򿪴ڡťʼʾΪ򿪴(Open SCI),
   ѡ˴ں벨,Ȼ󵥻򿪴ڡť,ťʾΪ"رմ(Close 
   SCI)",ѡڲɲ״̬,ڱǩʾǰ򿪵Ĵں벨,
   ״̬лʾǰٴεرմڡťʱ,ťʾ
   (Open SCI),ѡڿɲ״̬,ڱǩʾǰرյĴں
   ʡ
(2)ڷ
   ˲Сѡͷʽ,ѡͷʽСַʽʮƷ
   ʽʮƷʽַʽѡ񡣻СݡťշͿ
   ťı򡣵ѡַʽʱ,Էıûơѡ
   ʮƷ͡ʱ,Ҫ0-9ַ֮,ݲô255,
   붺Ż˸,ֹͲ,ͬʱ״̬
   Ӧʾ,ʮƷ͡ҲˡıʱͿԵ
   ݡťıеݷͳȥÿѡݷͷʽʱ,
   ı㡣շͿ򡱰ťǿշı
(3)ڽ
   ˲ʾյݣı򣬷ֱԡַʮơ
   ʮơַʽʾյݡıReadonlyΪtrue
   ,ݡɹյʱ,ıʾյݡ
   ʮıλʾ,ʮλʾ
2.̽ṹ
   ˹̷Ϊ֣йصĶFormļ,޹صĶFuncti-
   onļ.йصĶͨϵĿؼִв.޹ص
   װõĺ,ֻһӿ,û.޹صĺĸ:
   ʼڷݡڽݡж.ôڽͨʱ
   ֱӵЩ,ȥ˽ڲĻơ
3.ע
(1)˹õίе,ίDelegateVB.netC#һǳҪ,൱
   CC++еָ벢Ͱȫ.ҪӦڻص¼,Ҳ
   ,һֲο,ɻSystem.Delegate
(2)ڽϷһ״̬,ʾִй,гִʱ,ڵԡ
(3)ÿд벻78,ڴӡ롣
(4)Ϊֱ,еȫֱ"g_"ǰ׺
(5)ڴڵReceivedBytesThresholdֵֻΪ,SCIģǶ
   SCIReceInt,Աûѡýնٸֽʱжϡ
(6)SCIPortDataReceived¼ڲжϵʱá
(7)ڷͿ,붺ʱҪӢ뷨롣
(8)C#,SCIеSCIReceiveDataʱ,ݵǰrefΪ
   ,Ȼ޷ıԭֵ
(9)ڴַеĺ,ڽַʱ,ֱñķʽȡ
   ,Ȼίıʾ,VB.NETʾһһֽڴ
   ַʹSystem.Text.Encoding.Default.GetString(byte[] bytes),
   ǽֽbyte[]ָתΪַ,DefaultʾѡϵͳǰANSI
   ҳı,ϵͳѡļ,ĬϱΪ
   GB2312.ֶλΪASCIIUnicode,Ϣɲ鿴MSDNEncoding
   ˵GetString(byte[] bytes)ӦGetBytes(string strings),
   ǰ෴,ʹ÷ơ
(10)SerialPortؼԴ¼:DataReceived,ErrorReceivedPinChanged,ڿ
   Դе¼(Ͱť)в鿴.¼Ҳֵм¼
   ƺC#Form.Designer.csԶɶӦ¼ίע롣
(11)ڱ̴ݽյ̴:,ѡôͨŶ˿ڼ
   ,´򿪴ڰť.ڷıݣݡȰѴ
   ڡDataReceived¼ĴΪݵĳȡܻﵽ
   ʱ򣬴SCIPort_DataReceived¼;,SCIPort_DataReceived
   еSCIReceiveData,뻺еȡд;,
   ݽ¼UIڲͬ߳,ڽյʾformе
   textboxʱҪʹinvokeίеʵ̵ֿ߳ͨ,һSCIUpdate-
   Revtxtboxʵ֡
   