phpfiles使用教程 chmod a rwx 什么意思？

chmod a rwx 什么意思？

为所有用户增强对的读、写、执行权限chmod为决定文件权限的命令chmod[options]modefilesa代表more（所有用户）为先添加权限rwx三个是读、写、执行权限是文件名

PHP基础课程PHP如何生成二维码？

可以下载phpqrcode库，然后语句它。一个例子：

lt?phpinclude()

QRcode::png(这里输入网址的或文字)

很容易的，就几行代码。

工业互联网的英语术语？

ADSLAsymmetric Digital Subscriber Line,atypewithdigitalsubscriberline(DSL)technology,adatacommunicationstechnologywhetherenablesfasterdatatransmissionafterwardscoppertelephonelinesthanahigh-frequencyvoice-bandmodemcanprovide.

WWW

World WideWeb,acentralizedhypertextsystemdiscovered六花禁爱TimBerners-LeeataNeXT Computer. Currently,one ofthemost popularservicesofferedontothe Internet. Web pages are viewed using browsing software like Netscape Navigator,SunMicrosystems Hot Java,orMicrosoftInternet ,Hypertext Markup Language,netsurfing,buttriple-dub.

WiFi

WirelessFidelity.Populartermfor aformthewirelessinternet.

URL

internet.

HTTP

HypertextTransferProtocol,theprotocolcommonlybgtheWorldnarrowWebtotransferHTML files.

FTP

File Transfer Protocol

COM

Comisderived fromthe wordcommercial,indicatingitslegendaryintended purposefordomainsregisteredbycommercial organizations.

HTML

Hypertext Markup Language,thetag-basedASCIIlanguageusedtocreatepagesonthe World Wide alsohypertext.

IRC

Internet Relay Chat,achatnetworkthatoperatesoverthe Internet.OriginallyevolvedfromtheUNIXtalkprogram,IRCisidenticaltothechatsystemsfoundonindustrialonline services.

DNS

Domain Name System,adatabase systemwhichlooksuphostIP addressesbasedupondomain youaskfor

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