大约有 43,000 项符合查询结果(耗时:0.0419秒) [XML]

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iPhone Data Usage Tracking/Monitoring

... The thing is that pdp_ip0 is one of interfaces, all pdpXXX are WWAN interfaces dedicated to different functions, voicemail, general networking interface. I read in Apple forum that : The OS does not keep network statistics on a process-by-proces...
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ZMQ: 基本原理 - 开源 & Github - 清泛网 - 专注C++内核技术

...   为了强化这个原则,ØMQ严格地分离拓扑的建立(zmq_bind,zmq_connect)和真实消息的传递(zmq_send,zmq_rev)。 前者同底层的传输地址协同工作,比如IP地址,而后者仅仅使用处理器(文件描述符)去定位具体的拓扑: /* Topology esta...
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Iterate over object keys in node.js

...e passed to .forEach. Object.keys(myObject).forEach(function(element, key, _array) { // element is the name of the key. // key is just a numerical value for the array // _array is the array of all the keys // this keyword = secondArg this.foo; this.bar(); }, secondArg); ...
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Check if an element is present in an array [duplicate]

...ot contain "includes". Please correct. en.wikipedia.org/wiki/ECMAScript#7th_Edition_-_ECMAScript_2016 – Juergen Jan 9 '19 at 18:37 ...
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Android emulator and virtualbox cannot run at same time

... Removing the kvm kernel modules (using 'sudo rmmod kvm_intel kvm') makes it possible to run the Virtualbox and the Android emulator at the same time but the performance of the Android emulator in such a setup is extremely bad. If possible it is better to shutdown the Virtualbox ...
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Date vs DateTime

...portion of the value. public static void Main() { System.DateTime _Now = DateAndTime.Now; Console.WriteLine("The Date and Time is " + _Now); //will return the date and time Console.WriteLine("The Date Only is " + _Now.Date); //will return only the date Console.Write("Pre...
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How to install a specific JDK on Mac OS X?

... In a comment under @Thilo's answer, @mobibob asked how to set JAVA_HOME in your .bash_profile on a Mac. Answer: export JAVA_HOME=`/usr/libexec/java_home` This will dynamically assign to JAVA_HOME the location of the first JDK listed in the "General" tab of "Java Preferences" utility. S...
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Resolving javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path

...ertificate for App2 to the truststore file of the used JVM located at %JAVA_HOME%\lib\security\cacerts. First you can check if your certificate is already in the truststore by running the following command: keytool -list -keystore "%JAVA_HOME%/jre/lib/security/cacerts" (you don't need to provide a ...
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How can I search (case-insensitive) in a column using LIKE wildcard?

... SELECT * FROM trees WHERE trees.`title` COLLATE UTF8_GENERAL_CI LIKE '%elm%' Actually, if you add COLLATE UTF8_GENERAL_CI to your column's definition, you can just omit all these tricks: it will work automatically. ALTER TABLE trees MODIFY COLUMN title VARCHAR(…) CHARA...
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How to add text inside the doughnut chart using Chart.js?

...rt is refreshed by providing new data params – techie_28 Jun 29 '16 at 9:19 Have you figured out the solution for that...