Isku buuxinta lambarada in barnaamijyada WEB

In xisaabta, waxaa jira jeer marka sax buuxa ee tirada looma baahna, ama faragalin ku samayn kara ay sabab u adagtahay ee go'aaminta. Xaaladaha noocan oo kale ah laga yaabaa inuu dhaco inta lagu jiro hawlgalka, tus, hawlo dhaqdhaqaaq adag.

ilaa buuxinta inaannu calaamo - waxay ahayd markii uu bedelka ku dhow in qiimaha dheeriga ah ee eber la soo dhaafay dhammaadka.

jajab Dabiiciga yaabaa in lagu qaado howlgalka of darajo of sax kala duwan: .. Tobanaan, boqolaal, kun, iwm ku xiran tahay heerka loo baahan yahay ee sax loo baahan yahay si uu u bedelo tirada la eber, oo ku yaalla dheecaanku ka, kaas oo la soo koobay. aad ka fekeri karto hawlgalka tusaalayaal fudud.

Sidaas darteed, markii kor loo soo aruurinta tirada tobanaan, waa in la bedelay eber lambar ee unit dheecaanku ka daadanayo. Isla mar ahaantaana ay kor u kunka boqolaal - waa in lagu badalo kuwa iyo tobanaan lambar.

Howlgalkan waxuu ku lug leedahay helitaanka qiimaha saxda ah by isbeddel.

lambarada PHP buuxinta

Inkastoo PHP afka iyo waa luqadda, compiler ah, ee loogu talagalay fududeynta ugu badan ee shaqo abuurista WEB-pages iyo codsiyada, waxa kale oo ku jira tiro ka mid ah hawlaha la tibaaxaha xisaab shaqeeya. Waxay sidoo kale tolo soo aruurinta deegaanka horumarinta this.

hawlaha PHP

In PHP bixiyaa saddex hawlood oo loogu talagalay soo aruurinta: wareegsan, ceil iyo dabaqa. The ugu horeysay ee uu yahay, waayo, kunka hooseeyo abyoonaha. Shirka labaad ee - la mid ah sida ugu horreeyey, laakiin si wayn. Saddexaad - hoos.

Round () function dhigaya Saan soo socda:

sabeyn wareega (qiimaha birtiina [, sax INT])

Halbeegga ugu horreeya ee muujinaysaa tirada on kaas oo diinta ku dhacdaa. Second, sida optional ah, waxa ay muujinaysaa sax ah oo buuxinta ee tirooyinka.

Tusaale ka mid ah iyadoo la isticmaalayo shaqada:

$ Roun = wareega (3.8); // 4
$ Roun = wareega (3.15); // 3
$ Roun = wareega (5.5); // 6
$ Roun = wareega (8.499); // 8
$ Roun = wareega (2.46,1); // 2.5
$ Roun = wareega (3.7384,3); // 3,738
$ Roun = wareega (1939 -1); // 1940
$ Roun = wareega (2.5,1); // 2.5
$ Roun = wareega (1444 -2); // 1400

Isku buuxinta tirada jeclaaday inuu laba meelaha jajab tobanle ah:

$ Roun = wareega (3.467,2); // 3,47

Isku buuxinta tirada doonay inay qiimaha abyoonaha ah:

$ Roun = wareega (4.827); // 5

Haddii aad rabto in aad hesho tirada wareegsan jidka weyn, waa in aad isticmaasho ceil () function ku qeexan Saan ah:

ceil birtiina (qiimaha birtiina)

function Tani waa lagama maarmaan noqotay in dhimaya mid kaliya ay ku jiraan tiro jajab.

Tusaale ka mid ah iyadoo la isticmaalayo shaqada:

$ Cei = ceil (4.7); // 5
$ Cei = ceil (4.001); // 4
$ Cei = ceil (6.5); // 7
$ Cei = ceil (3.0); // 3

Haddii aad rabto in aad hesho buuxinta nambarada in kooxda ka yar u baahan

isticmaali dabaqa () function dhigaya Saan ah:

dabaqa birtiina (qiimaha birtiina)

function Tani waxay la mid tahay mid la soo dhaafay, marka laga reebo in ay wareeg iyada maray tiro jajab qiimaha hoose abyoonaha.

Tusaale ka mid ah iyadoo la isticmaalayo shaqada:

$ Okr = dabaqa (4.99); // 4
$ Okr = dabaqa (5.023); // 5
$ Okr = dabaqa (6.4); // 6
$ Okr = dabaqa (7.0); // 7

lambarada JavaScript buuxinta

In JavaScript, sida PHP, waxaa jira shaqo ah soo aruurinta lambarada. Waxay la mid ah hawlaha PHP sida horyaalka, iyo content waa, marka laga reebo xaqiiqada ah in ay u yeedheen waxaa sida hababka wax Xisaab ah.

JavaScript waa ka muuqo luqadda barnaamijyada wax-oriented. Taas oo muujinaysa muuqaalada qaar ka shaqeeyaan shaqeynayaan. Waxaan ku mashquulsan yihiin hawlaha soo aruurinta lambarada iyo Xoolahooda inay yihiin daray in wax Xisaab ah. Iyo inuu iyaga ugu yeedho ka dib markii magaca shayga waa in aad sheeg xiriiriyaha telefoonka ".", Oo markaas magaca hantida. Sidoo kale, waa in aad caddee, iyo qiimaha maray in hantida this.

tusaale ahaan:

alert ( "Math.floor (125.6768) = '+ Math.floor (125.6768));

muujin doonaa suuqa kala pop-up 125.

Si kastaba ha ahaatee, xataa haddii muuqata at jaleecada hore kakanaanta ee afaf wax-oriented shaqada ma noqon doonto dhibaato kasta oo ay u isticmaalaan shaqo JavaScript ah.