1、實用標準文案c#上位機串口通信助手源代碼實例詳解一、功能1軟件打開時，自動檢測有效com端口2軟件打開時，自動復原到上次關閉時的狀態3不必關閉串口，即可直接進行更改初始化設置內容（串口號、波特率、數據位、停止位、校驗位），可按更改后的信息自動將串口重新打開4可統計接收字節和發送字節的個數5接收數據可按16進制數據和非16進制數據進行整體轉換6可將接收到數據進行保存7可設置自動發送，發送時間可進行實時更改8可按字符串、16進制字節、文件方式進行發送，字符串和16進制字節可分別進行存儲，內容互不干擾9按16進制發送時，可自動校驗格式，不會輸錯10可清空發送或接收區域的數據二、使用工具visuals

2、tudio2015三、程序詳解1界面創建精彩文檔實用標準文案圖1用winform創建如圖1所示界面，控件名字分別為：端口號：cbxcomport波特率：cbxbaudrate數據位：cbxdatabits停止位：cbxstopbits校驗位：label5打開串口按鈕：btnopencom發送（byte）：tbsendcount接收（byte）：tbreceivedcount清空計數按鈕：btnclearcount按16進制顯示：cb16display接收區清空內容按鈕：btnclearreceived保存數據按鈕：btnsavefile接收數據框：tbreceiveddata發送數據框：tbs

3、enddata自動發送：cbautomaticsend間隔時間：tbspacetime按16進制發送：cb16send發送區清空內容按鈕：btnclearsend讀入文件按鈕：btnreadfile發送按鈕：btnsend2創建一個方法類按ctrl+shift+a快捷鍵創建一個類，名字叫methods，代碼為：usingsystem;usingsystem.collections;usingsystem.collections.generic;usingsystem.io.ports;usingsystem.linq;usingsystem.text;usingsystem.threading

4、.tasks;namespace串口助手sddclassmethods/獲取有效的com口publicstaticstringactiveports()arraylistactiveports=newarraylist();foreach(stringpnameinserialport.getportnames()activeports.add(convert.toint32(pname.substring(3);activeports.sort();stringmystr=newstringactiveports.count;精彩文檔實用標準文案inti=0;foreach(intnumin

5、activeports)mystri+=com+num.tostring();returnmystr;/16進制字符串轉換為byte字符數組publicstaticbyte_16strtohex(stringstrvalues)stringhexvaluessplit=strvalues.split();bytehexvalues=newbytehexvaluessplit.length;console.writeline(hexvaluessplit.length);for(inti=0;ihexvaluessplit.length;i+)hexvaluesi=convert.tobyte(

6、hexvaluesspliti,16);returnhexvalues;/byte數組以16進制形式轉字符串publicstaticstringbyteto16str(bytebytes)stringrecdata=null;/創建接收數據的字符串foreach(byteoutbyteinbytes)/將字節數組以16進制形式遍歷到一個字符串內recdata+=outbyte.tostring(x2)+;returnrecdata;/16進制字符串轉換字符串publicstaticstring_16strtostr(string_16str)stringoutstr=null;bytestre

7、ambyte=_16strtohex(_16str);outstr=encoding.default.getstring(streambyte);returnoutstr;2form1.cs的代碼為：usingsystem;usingsystem.collections.generic;usingsystem.componentmodel;usingsystem.data;精彩文檔實用標準文案usingsystem.drawing;usingsystem.io.ports;usingsystem.linq;usingsystem.text;usingsystem.text.regularexp

8、ressions;usingsystem.threading.tasks;usingsystem.windows.forms;usingsystem.io;usingsystem.collections;namespace串口助手sddpublicpartialclassform1:form/聲明變量serialportsp=newserialport();boolissetproperty=false;/串口屬性設置標志位privateenumportstate/聲明接口顯示狀態，枚舉型打開,關閉stringpath=appdomain.currentdomain.basedirectory

9、+confing.ini;/聲明配置文件路徑stringtbsenddatastr=;/發送窗口字符串存儲stringtbsenddata16=;/發送窗口16進制存儲listreceiveddatas=newlist();/接收數據泛型數組/接收串口數據privatevoidsp_datareceived(objectsender,serialdatareceivedeventargse)bytereceiveddata=newbytesp.bytestoread;/創建接收字節數組sp.read(receiveddata,0,receiveddata.length);/讀取所接收到的數據r

10、eceiveddatas.addrange(receiveddata);tbreceivedcount.text=(convert.toint32(tbreceivedcount.text)+receiveddata.length).tostring();if(cb16display.checked)tbreceiveddata.text=methods.byteto16str(receiveddatas.toarray();elsetbreceiveddata.text=encoding.default.getstring(receiveddatas.toarray();sp.discard

11、inbuffer();/丟棄接收緩沖區數據/發送串口數據privatevoiddatasend()tryif(cb16send.checked)bytehexbytes=methods._16strtohex(tbsenddata16);sp.write(hexbytes,0,hexbytes.length);tbsendcount.text=(convert.toint32(tbsendcount.text)+hexbytes.length).tostring();精彩文檔實用標準文案elsesp.writeline(tbsenddatastr);tbsendcount.text=(conv

12、ert.toint32(tbsendcount.text)+tbsenddatastr.length).tostring();catch(exceptionex)messagebox.show(ex.message.tostring();return;/設置串口屬性privatevoidsetportproperty()sp.portname=cbxcomport.text.trim();/設置串口名sp.baudrate=convert.toint32(cbxbaudrate.text.trim();/設置波特率switch(cbxstopbits.text.trim()/設置停止位case

13、1:sp.stopbits=stopbits.one;break;case1.5:sp.stopbits=stopbits.onepointfive;break;case2:sp.stopbits=stopbits.two;break;default:sp.stopbits=stopbits.none;break;sp.databits=convert.toint32(cbxdatabits.text.trim();/設置數據位switch(cbxparity.text.trim()/設置奇偶校驗位case無:sp.parity=parity.none;break;case奇校驗:sp.par

14、ity=parity.odd;break;case偶校驗:sp.parity=parity.even;break;default:sp.parity=parity.none;break;sp.readtimeout=5000;/設置超時時間為5scontrol.checkforillegalcrossthreadcalls=false;/這個類中我們不檢查跨線程的調用是否合法(因為.net2.0以后加強了安全機制,，不允許在winform中直接跨線程訪問控件的屬性)/定義datareceived事件的委托，當串口收到數據后出發事件sp.datareceived+=newserialdatare

15、ceivedeventhandler(sp_datareceived);/設置端口顯示狀態privatevoiddisplayportstate(portstateportstate)toolstripstatuslabel1.text=cbxcomport.text+端口處于+portstate+狀態+cbxbaudrate.text+cbxdatabits.text+cbxstopbits.text+cbxparity.text;/重新打開串口privatevoidagainopenport()if(sp.isopen)精彩文檔實用標準文案trysp.close();setportprop

16、erty();issetproperty=true;sp.open();catch(exception)issetproperty=false;btnopencom.text=打開串口;displayportstate(portstate.關閉);messagebox.show(串口無效或已被占用!,錯誤提示);return;displayportstate(portstate.打開);elsedisplayportstate(portstate.關閉);publicform1()initializecomponent();/軟件啟動時加載事件privatevoidform1_load(obj

17、ectsender,eventargse)#region加載配置文件hashtableht=newhashtable();if(file.exists(path)trystringmyline=;stringstr=newstring2;using(streamreadersr=newstreamreader(path)myline=sr.readline();while(myline!=null)str=myline.split(=);ht.add(str0,str1);myline=sr.readline();精彩文檔實用標準文案catch(exceptionex)messagebox.s

18、how(ex.message.tostring();#endregion#region設置窗口為固定大小且不可最大化this.maximumsize=this.size;this.minimumsize=this.size;this.maximizebox=false;#endregion#region列出常用的波特率cbxbaudrate.items.add(1200);cbxbaudrate.items.add(2400);cbxbaudrate.items.add(4800);cbxbaudrate.items.add(9600);cbxbaudrate.items.add(19200)

19、;cbxbaudrate.items.add(38400);cbxbaudrate.items.add(43000);cbxbaudrate.items.add(56000);cbxbaudrate.items.add(57600);cbxbaudrate.items.add(115200);if(ht.containskey(cbxbaudrate)cbxbaudrate.selectedindex=cbxbaudrate.items.indexof(htcbxbaudrate.tostring();elsecbxbaudrate.selectedindex=3;cbxbaudrate.dr

20、opdownstyle=comboboxstyle.dropdownlist;#endregion#region列出停止位cbxstopbits.items.add(1);cbxstopbits.items.add(1.5);cbxstopbits.items.add(2);if(ht.containskey(cbxstopbits)cbxstopbits.selectedindex=cbxstopbits.items.indexof(htcbxstopbits.tostring();elsecbxstopbits.selectedindex=0;cbxstopbits.dropdownsty

21、le=comboboxstyle.dropdownlist;#endregion#region列出數據位cbxdatabits.items.add(8);cbxdatabits.items.add(7);cbxdatabits.items.add(6);cbxdatabits.items.add(5);if(ht.containskey(cbxdatabits)cbxdatabits.selectedindex=cbxdatabits.items.indexof(htcbxdatabits.tostring();else精彩文檔實用標準文案cbxdatabits.selectedindex=0

22、;cbxdatabits.dropdownstyle=comboboxstyle.dropdownlist;#endregion#region列出奇偶校驗位cbxparity.items.add(無);cbxparity.items.add(奇校驗);cbxparity.items.add(偶校驗);if(ht.containskey(cbxparity)cbxparity.selectedindex=cbxparity.items.indexof(htcbxparity.tostring();elsecbxparity.selectedindex=0;cbxparity.dropdownst

23、yle=comboboxstyle.dropdownlist;#endregion#regioncom口重新加載cbxcomport.items.clear();/清除當前串口號中的所有串口名稱cbxcomport.items.addrange(methods.activeports();if(ht.containskey(cbxcomport)&cbxcomport.items.contains(htcbxcomport.tostring()cbxcomport.selectedindex=cbxcomport.items.indexof(htcbxcomport.tostring();el

24、secbxcomport.selectedindex=0;cbxcomport.dropdownstyle=comboboxstyle.dropdownlist;#endregion#region初始化計數器tbsendcount.text=0;tbsendcount.readonly=true;tbreceivedcount.text=0;tbreceivedcount.readonly=true;#endregion#region初始化當前時間toolstripstatuslabel3.text=datetime.now.tostring();#endregion#region初始化串口狀

25、態toolstripstatuslabel1.forecolor=color.blue;if(!issetproperty)/串口未設置則設置串口屬性setportproperty();issetproperty=true;trysp.open();btnopencom.text=關閉串口;displayportstate(portstate.打開);catch(exception)/串口打開失敗后，串口屬性設置標志位設為falseissetproperty=false;精彩文檔實用標準文案messagebox.show(串口無效或已被占用!,錯誤提示);#endregion#region初始

26、化間隔時間if(ht.containskey(tbspacetime)tbspacetime.text=httbspacetime.tostring();elsetbspacetime.text=1000;#endregion#region初始化按16進制顯示狀態if(ht.containskey(cb16display)&htcb16display.tostring()=true)cb16display.checked=true;elsecb16display.checked=false;#endregion#region初始化按16進制發送狀態if(ht.containskey(cb16s

27、end)&htcb16send.tostring()=true)cb16send.checked=true;elsecb16send.checked=false;#endregion#region初始化發送區文本if(ht.containskey(tbsenddata16)&ht.containskey(tbsenddatastr)tbsenddata16=httbsenddata16.tostring();tbsenddatastr=httbsenddatastr.tostring();if(cb16send.checked)tbsenddata.text=httbsenddata16.to

28、string();elsetbsenddata.text=httbsenddatastr.tostring();#endregiontbsenddata.focus();/顯示當前時間privatevoidtimer1_tick(objectsender,eventargse)toolstripstatuslabel3.text=datetime.now.tostring();精彩文檔實用標準文案/點擊打開串口按鈕privatevoidbtnopencom_click(objectsender,eventargse)if(!sp.isopen)/串口沒有打開時if(!issetproperty

29、)/串口未設置則設置串口屬性setportproperty();issetproperty=true;trysp.open();btnopencom.text=關閉串口;displayportstate(portstate.打開);catch(exception)/串口打開失敗后，串口屬性設置標志位設為falseissetproperty=false;messagebox.show(串口無效或已被占用!,錯誤提示);else/串口已經打開trysp.close();issetproperty=false;btnopencom.text=打開串口;displayportstate(portsta

30、te.關閉);catch(exception)messagebox.show(關閉串口時發生錯誤,錯誤提示);/發送串口數據privatevoidbtnsend_click(objectsender,eventargse)if(tbsenddata.text.trim()=)/檢測發送數據是否為空messagebox.show(請輸入要發送的數據!,錯誤提示);return;if(sp.isopen)datasend();精彩文檔實用標準文案elsemessagebox.show(串口未打開!,錯誤提示);/點擊端口號選擇下拉框按鈕privatevoidcbxcomport_selectedi

31、ndexchanged(objectsender,eventargse)againopenport();/點擊波特率選擇下拉框按鈕privatevoidcbxbaudrate_selectedindexchanged(objectsender,eventargse)againopenport();/點擊數據位選擇下拉框按鈕privatevoidcbxdatabits_selectedindexchanged(objectsender,eventargse)againopenport();/點擊停止位選擇下拉框按鈕privatevoidcbxstopbits_selectedindexchang

32、ed(objectsender,eventargse)againopenport();/點擊校驗位選擇下拉框按鈕privatevoidcbxparity_selectedindexchanged(objectsender,eventargse)againopenport();/點擊數據接收區清空按鈕privatevoidbtnclearreceived_click(objectsender,eventargse)receiveddatas.clear();tbreceiveddata.text=;/點擊是否按16進制顯示接收數據privatevoidcb16display_checkedcha

33、nged(objectsender,eventargse)if(cb16display.checked)精彩文檔實用標準文案tbreceiveddata.text=methods.byteto16str(receiveddatas.toarray();elsetbreceiveddata.text=encoding.default.getstring(receiveddatas.toarray();/點擊是否按16進制發送數據privatevoidcb16send_checkedchanged(objectsender,eventargse)if(cb16send.checked)tbsend

34、data.text=tbsenddata16;elsetbsenddata.text=tbsenddatastr;/發送文本框鍵盤按鍵檢測privatevoidtbsenddata_keypress(objectsender,keypresseventargse)if(cb16send.checked)/正則匹配stringpattern=0-9a-fa-f|b;/b:退格鍵matchm=regex.match(e.keychar.tostring(),pattern);if(m.success)if(e.keychar!=b)if(tbsenddata.text.length%3=2)tbs

35、enddata.text+=;tbsenddata.selectionstart=tbsenddata.text.length;e.keychar=convert.tochar(e.keychar.tostring().toupper();e.handled=false;elsee.handled=true;elsee.handled=false;/點擊清空發送內容privatevoidbtnclearsend_click(objectsender,eventargse)tbsenddata.text=;if(cb16send.checked)精彩文檔實用標準文案tbsenddata16=;e

36、lsetbsenddatastr=;/點擊清空計數器數據privatevoidbtnclearcount_click(objectsender,eventargse)tbreceivedcount.text=0;tbsendcount.text=0;/點擊是否設置自動發送privatevoidcbautomaticsend_checkedchanged(objectsender,eventargse)if(cbautomaticsend.checked)timer2.enabled=true;timer2.interval=convert.toint32(tbspacetime.text);e

37、lsetimer2.enabled=false;/自動發送時間文本框鍵盤按鍵檢測privatevoidtbspacetime_keypress(objectsender,keypresseventargse)/正則匹配stringpattern=0-9|b;matchm=regex.match(e.keychar.tostring(),pattern);if(m.success)timer2.interval=convert.toint32(tbspacetime.text);e.handled=false;elsee.handled=true;/串口顯示狀態privatevoidtimer2

38、_tick(objectsender,eventargse)if(sp.isopen)datasend();elsetimer2.enabled=false;cbautomaticsend.checked=false;messagebox.show(串口未打開!,錯誤提示);精彩文檔實用標準文案return;if(tbsenddata.text.trim()=)/檢測發送數據是否為空timer2.enabled=false;cbautomaticsend.checked=false;messagebox.show(請輸入要發送的數據!,錯誤提示);return;/關閉窗口時出發的事件priva

39、tevoidform1_formclosed(objectsender,formclosedeventargse)tryusing(streamwritersw=newstreamwriter(path,false)sw.writeline(cbxcomport=+cbxcomport.text);sw.writeline(cbxbaudrate=+cbxbaudrate.text);sw.writeline(cbxdatabits=+cbxdatabits.text);sw.writeline(cbxstopbits=+cbxstopbits.text);sw.writeline(cbxparity=+cbxparity.text);sw.writeline(cb16display=+cb16display.checked.tostring();sw.writeline(tbspac