Ho hlahloba hore na likhoele tse peli li lekana ho bash scripting, sebelisa bash haeba statemente le habeli ho lekana le == opareitara. Ho hlahloba hore na likhoele tse peli ha li lekane ho bash scripting, sebelisa bash if statement mme ha e lekane le != operator.
U bapisa likhoele tse peli joang?
Java String e lekana() Mokhoa
Mokhoa o lekanang () o bapisa likhoele tse peli, 'me o khutlisa' nete haeba likhoele li lekana, 'me e le leshano haeba ho se joalo. Keletso: Sebelisa bapisaTo() mokhoa ho bapisa dikgwele tse pedi ho ya ka lexicographical.
U beha joang hore ha u lekane ho script ea khetla?
= ' Operator : Ha e lekane le opereishene e khutlisa 'nete haeba li-operands tse peli li sa lekane ho seng joalo e khutlisa leshano. '<' Opereishene : Ka tlase ho opereishene e khutlisa 'nete haeba opereishene ea pele e le lees ho feta ea bobeli empa e 'ngoe e khutlisa e le leshano.
A na u ka sebelisa == ho bapisa likhoele?
Ka String, == opareitara e sebelisoa ho bapisa tšupiso ea likhoele tse fanoeng, ho latela hore na li bua ka lintho tse tšoanang. Ha u bapisa likhoele tse peli u sebelisa == opareitara, e tla khutla e le 'nete haeba mefuta e fapaneng ea likhoele e supa ntho e tšoanang ea java. Ho seng joalo, e tla khutla e le leshano .
Ke efe ea litaelo tse latelang eo u ka e sebelisang ho hlahloba hore na likhoele tse peli lia lekana?
U ka e sebelisa basebetsi ba lekanang = le == ho hlahloba hore na likhoele tse peli lia lekana. U tlameha ho sebelisa sebaka se le seng pele le ka morao ho == le = basebetsi.
Phapano ke efe lipakeng tsa == le tse lekanang ()?
Ka mantsoe a bonolo, == e hlahloba hore na lintho tseo ka bobeli li supa sebakeng se le seng sa memori athe . equals() e lekola ho bapisa boleng ba lintho. Haeba sehlopha se sa tlole mokhoa oa li-equals, joale ka ho sa feleng se sebelisa mokhoa o lekanang (Object o) oa sehlopha se haufi sa motsoali se tlositseng mokhoa ona.
Ke bapisa likhoele tse peli joang ho typescript haeba boemo?
"haeba mongolo oa polelo o bapisa khoele" Karabo ea Khoutu
- var string1 = "Lumela Lefatše";
- var string2 = "Dumela lefatshe.";
- haeba (khoele1 === khoele2) {
- tšelisa. log(“Likhoele tse tšoanang!” );
- }
- hosele {
- tšelisa. log("Likhoele ha li lumellane");
- }
$ ke eng? Ka bash script?
$? -Boemo ba ho tsoa ha taelo ea ho qetela e phethiloeng. $0 -Lebitso la faele la mongolo oa hajoale. $# -Palo ea likhang tse fanoeng ho mongolo. $$ -Nomoro ea ts'ebetso ea khetla ea hona joale.
$ ke eng? Ka shell script?
$? ke phetoho e khethehileng ho khetla e balang boemo ba ho tsoa ba taelo ea ho qetela e phethiloeng. Ka mor'a hore ts'ebetso e khutle, $? e fana ka boemo ba ho tsoa ba taelo ea ho qetela e phethiloeng tšebetsong.
== ho bolela eng ho bash?
== ke bash -specific alias bakeng sa =, e etsang papiso ea khoele (lexical) sebakeng sa -eq papiso ea linomoro. (E khutlela morao ho tloha Perl: basebelisi ba mokhoa oa mantsoe ke linomoro, ba tšoantšetso ba lexical.)
U bapisa likhoele tsa lexicographical joang?
Mokhoa oa ho bapisaTo() e sebelisetsoa ho bapisa likhoele tse peli tsa lexicographical ho Java.
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E khutlisa boleng bo latelang:
- haeba (khoele1> khoele2) e khutlisa boleng bo nepahetseng.
- haeba likhoele ka bobeli li lekana ka mokhoa oa mantsoe. ke hore(string1 == string2) e khutlisa 0.
- haeba (string1 < string2) e khutlisetsa boleng bo fosahetseng.
Nka hlahloba joang hore na likhoele tse peli li na le litlhaku tse tšoanang?
Mokhoa oa 2 (Bala litlhaku)
- Etsa palo ea lihlopha tsa boholo ba 256 bakeng sa likhoele tse peli. Kenya litekanyetso tsohle ho palo ea lihlopha joalo ka 0.
- Pheta tlhaku e 'ngoe le e 'ngoe ea likhoele ka bobeli 'me u eketse palo ea litlhaku ho lihlopha tse tsamaisanang tsa palo.
- Bapisa palo ea lihlopha. Haeba ka bobeli li-arrays tsa palo li tšoana, khutlisetsa 'nete.
U bapisa likhoele tse peli joang ho lupu?
Sebelisa mokhoa o lekanang (). ho hlahloba hore na likhoele tse 2 lia tšoana. Mokhoa oa ho lekana () ha o na taba, ho bolelang hore khoele "HELLO" e nkoa e fapane le khoele "hello". The == operator ha e sebetse ka botšepehi ka likhoele. Sebelisa == ho bapisa litekanyetso tsa khale tse kang int le char.