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在学习中我们要善于总结，总结对我们有很大的帮助，可以加快我们学习的步伐。在这里我给大家总结一下关于VB.NETSplit使用方法，希望朋友们在工作学习中总结出更多的方法。
VB.NETSplit使用方法一.简单的split分割字符串
首先我们拿了一个带多个空格的字符串来做分割.我们分配一个NewChar()array保存为String()array来储存我们例子中的那些分割后的单词.最后，我们用loop循环来遍历和显示这些分割后的字母集合.
===ProgramthatusesSplitonString(VB.NET)=== ModuleModule1 SubMain() 'Wewanttosplitthisinputstring DimsAsString="Ourwebsiteaddressiswww.51cto.cn" 'Splitstringbasedonspaces DimwordsAsString()=s.Split(NewChar(){""c}) 'UseForEachloopoverwordsanddisplaythem DimwordAsString ForEachwordInwords Console.WriteLine(word) Next EndSub EndModule ===Outputoftheprogram=== Our website address is
VB.NETSplit使用方法二.分割一个完整文件路径
HereweseehowyoucanSplitafilesystempathintoseparatepartsusingVisualBasic.NET.WeuseaNewChar()arraywithonestring,"""c,andthenloopthroughanddisplaytheresults. ===Programthatsplitsfilepath(VB.NET)=== ModuleModule1 SubMain() 'Thefilesystempathweneedtosplit DimsAsString="C:UsersSamDocumentsPerls51cto" 'Splitthestringonthebackslashcharacter DimpartsAsString()=s.Split(NewChar(){""c}) 'LoopthroughresultstringswithForEach DimpartAsString ForEachpartInparts Console.WriteLine(part) Next EndSub EndModule ===Outputoftheprogram=== C: Users Sam Documents Perls
VB.NETSplit使用方法三.根据单词分割语句这里用了正则表达式
OftenyouneedtoextractthewordsfromaStringorsentenceinVB.NET.Thecodehereneedstohandlepunctuation
andnon-wordcharactersdifferentlythantheStringSplitmethod.HereweuseRegex.Splittoparsethewords. ===Programthatsplitswords(VB.NET)=== ImportsSystem.Text.RegularExpressions ModuleModule1 SubMain() 'Declareiterationvariable DimsAsString 'Loopthroughwordsinstring DimarrAsString()=SplitWords(".NetFans'sQQgroupNois40797788,man!") 'Displayeachword.Notethatpunctuationishandledcorrectly. ForEachsInarr Console.WriteLine(s) Next Console.ReadLine() EndSub '''<summary> '''Splitthewordsinstringonnon-wordcharacters. '''Thismeanscommasandperiodsarehandledcorrectly. '''<<span><< span>
summary> PrivateFunctionSplitWords(ByValsAsString)AsString() ' 'CallRegex.Splitfunctionfromtheimportednamespace. 'Returntheresultarray. 'ReturnRegex.Split(s,"W+") EndFunction EndModule ===Outputoftheprogram=== 第一行是空白 Net----这个是第2行了 Fans s QQ group No is 40797788 man Descriptionoftheexamplecode.IntheMain()subroutineyoucansee
thattwovariablesaredeclared.ThesecondvariableisaString()arraythatreceivestheresultsfromthePrivateFunctionnext. DescriptionoftheRegex.TheFunctionshownintheexamplecalls
theRegex.Splitmethod,whichcanbeaccessedwithdotnotation,withnoinstancenecessary.
Thesecondparametertothemethodisaregularexpressionpattern. DescriptionoftheRegexpattern.Thepattern"W+"isused,andthismeans"1ormorenon-wordcharacters".
Thispatternwillmatchpunctuationandspaces.Therefore,allthosecharacterswillbeusedasdelimiters.
VB.NETSplit使用方法四.分割一个文本文件中的每行
HereweseeonewaytoSpliteachlineinafileusingFile.ReadAllLinesandSplit.
Wehaveacomma-separated-valuesCSVfile,andwanttoprintouteachvalueanditsrownumber.
Hereistheinputfile"example.txt".[Seebelow] TheSplitcodeexamplefollows.ItfirstreadsinthefilewithReadAllLines.
Thisfunctionputseachlineinthefileintoanarrayelement.TheexamplenextSplitson","c.
Thefinalcommentshowstheoutputoftheprogram. ===Inputfileused=== frontal,parietal,occipital,temporal pulmonaryartery,aorta,leftventricle ===Exampleprogramthatsplitslines(VB.NET)=== ImportsSystem.IO ModuleModule1 SubMain() DimiAsInteger=0 'vb.net 'LoopthrougheachlineinarrayreturnedbyReadAllLines DimlineAsString ForEachlineInFile.ReadAllLines("example.txt") 'Splitlineoncomma DimpartsAsString()=line.Split(NewChar(){","c}) 'Loopovereachstringreceived DimpartAsString ForEachpartInparts 'DisplaytoConsole Console.WriteLine("{0}:{1}",i,part) Next i+=1 Next EndSub EndModule ===Outputoftheprogram=== 0:frontal 0:parietal 0:occipital 0:temporal 1:pulmonaryartery 1:aorta 1:leftventricle （编辑：李大同）
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