版權(quán)說明：本文檔由用戶提供并上傳，收益歸屬內(nèi)容提供方，若內(nèi)容存在侵權(quán)，請進(jìn)行舉報(bào)或認(rèn)領(lǐng)
文檔簡介
1、functionscanfintscanf(constfmat...)ReadfmatteddatafromstdinReadsdatafromstdinstesthemaccdingtotheparameterfmatintothelocationspointedbytheadditionalarguments.Theadditionalargumentsshouldpointtoalreadyallocatedobjectsofth
2、etypespecifiedbytheircrespondingfmattagwithinthefmatstring.ParametersfmatCstringthatcontainsonemeofthefollowingitems:oWhitespaceacter:thefunctionwillreadigneanywhitespaceacters(thisincludesblankspacesthenewlinetabacters)
3、whichareencounteredbefethenextnonwhitespaceacter.Thisincludesanyquantityofwhitespaceactersnone.oNonwhitespaceacterexceptpercentagesigns(%):Anyacterthatisnoteitherawhitespaceacter(blanknewlinetab)partofafmatspecifier(whic
4、hbeginwitha%acter)causesthefunctiontoreadthenextacterfromstdincompareittothisnonwhitespaceacterifitmatchesitisdiscardedthefunctioncontinueswiththenextacteroffmat.Iftheacterdoesnotmatchthefunctionfailsreturningleavingsubs
5、equentactersofstdinunread.Fmatspecifiers:Asequencefmedbyaninitialpercentagesign(%)indicatesafmatspecifierwhichisusedtospecifythetypefmatofthedatatoberetrievedfromstdinstedinthelocationspointedbytheadditionalarguments.Afm
6、atspecifierfollowsthisprototype:%[][width][modifiers]typewhere:Anoptionalstartingasteriskindicatesthatthedataistoberetrievedfromstdinbutignedi.e.itisnotstedinthecrespondingargument.widthSpecifiesthemaximumnumberofacterst
7、obereadinthecurrentreadingoperationReturnValueOnsuccessthefunctionreturnsthenumberofitemssuccessfullyread.Thiscountcanmatchtheexpectednumberofreadingsfewerevenzeroifamatchingfailurehappens.Inthecaseofaninputfailurebefean
8、ydatacouldbesuccessfullyreadEOFisreturned.Example123456789101112131415scanfexample#includeintmain()str[80]intiprintf(“Enteryourfamilyname:“)scanf(“%s“str)printf(“Enteryourage:“)scanf(“%d“printf(“Mr.%s%dyearsold.n“stri)pr
9、intf(“Enterahexadecimalnumber:“)scanf(“%x“printf(“Youhaveentered%#x(%d).n“ii)return0Thisexampledemonstratessomeofthetypesthatcanbereadwithscanf:Enteryourfamilyname:SoulieEnteryourage:29Mr.Soulie29yearsold.Enterahexadecim
溫馨提示
- 1. 本站所有資源如無特殊說明，都需要本地電腦安裝OFFICE2007和PDF閱讀器。圖紙軟件為CAD,CAXA,PROE,UG,SolidWorks等.壓縮文件請下載最新的WinRAR軟件解壓。
- 2. 本站的文檔不包含任何第三方提供的附件圖紙等，如果需要附件，請聯(lián)系上傳者。文件的所有權(quán)益歸上傳用戶所有。
- 3. 本站RAR壓縮包中若帶圖紙，網(wǎng)頁內(nèi)容里面會有圖紙預(yù)覽，若沒有圖紙預(yù)覽就沒有圖紙。
- 4. 未經(jīng)權(quán)益所有人同意不得將文件中的內(nèi)容挪作商業(yè)或盈利用途。
- 5. 眾賞文庫僅提供信息存儲空間，僅對用戶上傳內(nèi)容的表現(xiàn)方式做保護(hù)處理，對用戶上傳分享的文檔內(nèi)容本身不做任何修改或編輯，并不能對任何下載內(nèi)容負(fù)責(zé)。
- 6. 下載文件中如有侵權(quán)或不適當(dāng)內(nèi)容，請與我們聯(lián)系，我們立即糾正。
- 7. 本站不保證下載資源的準(zhǔn)確性、安全性和完整性, 同時也不承擔(dān)用戶因使用這些下載資源對自己和他人造成任何形式的傷害或損失。
最新文檔
- the relation and distinction between real variable function and complex function
- function_fread
- function_rand
- function_printf
- scanf格式控制字符串
- function_realloc
- 5-3function
- 1-3function
- 3-8function
- 離散數(shù)學(xué)課件----function
- robot visual design with the panorama synthesis function
- a brief probe into the function of context and the principles of legal conversation
- second order discriminant function for amplitude comparison monopulse
- discussion on the application of computer prediction function to marketing management
- 2018版-microrna regulatory network structure and function
- brief analysis on weakening of social mobility function of rural
- study on the function application of enterprise information management system
- An Analysis of Pragmatic Function of Vagueness in Desperate Housewives.pdf
- 2016版-sperm acrosome biogenesis and function during fertilization
- 8-paper-temperature stability in coating pots as a function
評論
0/150
提交評論