Vakasarudza muCSS vanogona kutibatsira nyore nyore kuwedzera masitaera anodikanwa kuzvinhu zvakatsanangurwa.Chinyorwa ichi chinopindura zvakadzama ivo vatatu vanosarudza ": nth-mwana", ": wekutanga-mwana" uye ": wekutanga-werudzi" Musiyano .

JavaScript mutauro unonyatsoshandiswa mukusimudzira padandemutande.Chinyorwa ichi chinotsanangura zvakadzama maitiro ekuwana iyo chaiyo nhamba yemutsetse yekodhi yazvino panguva yekumhanya.

JavaScript mutauro unonyatso shandiswa mukuvandudza webhu, pakati pazvo zvisina tsananguro uye zvisina kujekeswa zvinowanzo sangana nesu.Chinyorwa ichi chinotsanangura hunhu hwevaviri zvakadzama.

Kana setInterval irikumhanya kumashure kwebrowser, iyo yekumberi nguva yekumisikidza inoshandurwa nechisimba kuita 1000 milliseconds, uye inomira mushure mekumhanya kwenguva yakati. Ichi chinyorwa chinotsanangura maitiro ekugadzirisa dambudziko iri.

Iyo isina kukwana disk nzvimbo paLinux inowanzo kukonzerwa neyakawandisa logi mafaera. Asi isu kazhinji hatizive kuti mafaira erogi akachengetwa kupi. Parizvino, isu tinofanirwa kutarisa saizi yedhairekitori nhete nedura kuti tiwane nzvimbo yefaira. Ichi chinyorwa chinounza rairo paLinux kuti utarise saizi refaira dhairekitori.

Kana uchinyora nekuisa Redis5 paCentOS7, paive nekanganiso iyo jemalloc.h yaisawanikwa. Ichi chinyorwa chinotsanangura maitiro ekugadzirisa icho.

Kana uchinyora nekuisa Python3, kukanganisa mune zita kunoonekwa Ichi chinyorwa chinotsanangura maitiro ekugadzirisa icho.

Diode anonyanya kushandiswa zvigadzirwa zvemagetsi. Ichi chinyorwa chinonyanya kuzivisa kumberi uye kudzosera hunhu kwema diode.

Kana isu tikanyora kodhi, pachagara paine kukanganisa kazhinji mune dzimwe nzvimbo, uye izvi zvikanganiso hazvidziviriki uye zvinogona kufuratirwa.Parizvino, tinogona kushandisa PHP yekukanganisa kudzvinyirira kuvharidzira zvikanganiso.

Uchishandisa YUM kuisa software zviri nyore kwazvo kupfuura kunyora nekuisa. Asi kana sevha yedu isina iyo yeruzhinji IP mune yemukati network, tinofanirwa kubatana kune yeruzhinji network kuburikidza neye proxy server Ichi chinyorwa chinotsanangura maitiro ekugadzirisa SOCKS5 proxy yeYUM.

Apache ndiyo yakanyanya kushandiswa pasi rese web server software. Iyo inogona kumhanya pane angangoita ese anoshandiswa zvakanyanya macomputer mapuratifomu Nekuda kwayo muchinjika-chikuva uye chengetedzo inoshandiswa zvakanyanya, ndiyo imwe yeanonyanya kufarirwa Webhu server-parutivi software. Ichi chinyorwa chinotsanangura zvakadzama maitiro ekuisa Apache pane CentOS7.

.NET inzvimbo yekuvandudza yeMicrosoft, nekuti inogona kungomhanya paWindows mumazuva ekutanga, ine zvakawanda zvinogumira. Asi iyo nyowani .NET Core yatove kutsigira kumhanya paLinux. Ichi chinyorwa chinotsanangura zvakadzama maitiro ekuisa .NET Core pane CentOS7.

MySQL ndeye inowanzo shandiswa yakavhurwa sosi relational database. MySQL8 yakanyanyisa uye inochengetedzwa chengetedzo kupfuura yapfuura vhezheni. Panguva imwecheteyo, MySQL8 yakagadzirawo akawanda optimization mukuita. Ichi chinyorwa chinotsanangura zvakadzama maitiro ekuisa uye kugadzirisa MySQL8 paCentOS7.

SVN chirevo chekupandukira, yakavhurwa sosi vhezheni yekudzora system. Inowanzo shandiswa kune vanhu vakawanda kuti vabudirane pamwe chete chirongwa chimwe chete, kuwana zviwanikwa zvakagovaniswa, uye pakupedzisira hutongi hwepakati. Ichi chinyorwa chinotsanangura zvakadzama maitiro ekuisa sevhisi yeSVN paCentOS7.

MariaDB ibazi reMySQL.Kushandiswa kwayo kwakangofanana neMySQL, asi inotsigira akawanda masisitimu masumbu, ayo akasiyana neiyo tenzi-muranda maitiro eMySQL. Ichi chinyorwa chinotsanangura zvakadzama maitiro ekuisa MariaDB 10.4 paCentOS7.

Kana tichida kuwedzera uye kubvisa mazuva uye nguva muMySQL, tinogona kushandisa: DATE_ADD, DATE_SUB, ADDDATE, SUBDATE.Chinyorwa ichi chinotsanangura mashandisirwo emabasa aya zvakadzama.

Kazhinji isu tinofanirwa kutora iko kukanganisa kwepasirese muPHP tobva tarekodha danda, kuti tikwanise kuwana zvingangonetsa muchirongwa munguva. Asi mushure mekuseta iko kukanganisa callback basa ne set_error_handler, isu hatichakwanise kubata zvikanganiso zveFATAL. Ichi chinyorwa chinotsanangura maitiro ekubata FATAL mwero zvikanganiso zvakagadzirwa panguva ye PHP nguva yekumhanya.

EMQX yakazara kwazvo MQTT server.Chinyorwa ichi chinotsanangura maitiro ekugadzira kodhi yemvumo yekudaidza iyo API interface yeEMQX.

EMQX inoyevedza MQTT server.Chinyorwa ichi chinotsanangura mashandisiro aungaite yako kodhi kudzora mvumo kana vatengi vakangwara vabatana kune masevhisi uye kunyorera kushambadza misoro.

EMQX inoyevedza MQTT meseji meseji.Chikamu chayo chinotsigira makumi emamirioni ekubatana uye chine chinoshanduka chekuwedzera michina. Ichi chinyorwa chinotsanangura zvakadzama maitiro ekuisa EMQX paCentOS7.