问：

嗨，ScriptingGuy！IhaveascriptwhereusersentersomeinformationinanInputbox.Theinformationneedstobeenteredinall-capitalletters,somyinstructionssay,“PleasemakesuretheCapsLockkeyisonbeforeenteringtheinformation.”Theydon'talwaysdothat,however.IsthereawaytoturntheCapsLockkeyonandoffusingascript?

--BW,Medford,OR

答：

Hey,BW.Wedon'tknowofawaytoturntheCapsLockkeyonandoff,butwedoknowawaytomimictheeffectofhavingtheCapsLockkeyon.Afterall,thewholepointoftheCapsLockkeyistoturneverythingyoutypeintouppercaseletters.Forexample,youmighttypethis:

thisismysentence.

ButCapsLockwillmakeitappearonscreenlikethis:

THISISMYSENTENCE.

Sohowcanweachievethesameaffectinascript?简单：wejustusetheVBScriptfunctionUCase,whichswitchesallthelettersinastringtotheiruppercaseequivalent.Forexample,here'sasimpletwo-linescriptthatgathersinformationfromauserandthenusestheUCasefunctiontoswitchalltheletterstouppercasewhenechoingthevaluetothescreen:

strMessage=InputBox("Pleaseenteryourmessage:")Wscript.EchoUCase(strMessage)

Incidentally,theabovescriptdoesn'tactuallychangethecaseofthelettersinthestringstrMessage;itjustdisplaystheminuppercase.Ifyoureallywantallthelettersconvertedtouppercase,trythisscriptinstead:

strMessage=UCase(InputBox("Pleaseenteryourmessage:"))Wscript.EchostrMessage

Lookscrazy,butitworks.

FormoreinformationabouttheUCasefunction,seetheVBScript文档onMSDN.