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jumpserver-华为云免费堡垒机解决方案 - 更多技术 - 清泛网 - 专注C/C++及内核技术

jumpserver-华为云免费堡垒机解决方案一、环境CentOS 6.x x86_64 minivi etc hostsvi etc sysconfig networkservice iptables stopchkconfig iptables off关闭SELinu...一、环境 CentOS 6.x x86_64 mini vi /etc/hosts vi /etc/sysconfig/network service iptables stop chkco...
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Is there a way to instantiate objects from a string holding their class name?

...ce() { return new T; } typedef std::map<std::string, Base*(*)()> map_type; map_type map; map["DerivedA"] = &createInstance<DerivedA>; map["DerivedB"] = &createInstance<DerivedB>; And then you can do return map[some_string](); Getting a new instance. Another idea is ...
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Javascript Drag and drop for touch devices [closed]

...aggable items and it works great so far. if (event.target.id == 'draggable_item' ) { event.preventDefault(); } share | improve this answer | follow | ...
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_=> what does this underscore mean in Lambda expressions?

What does an lambda expression like _=> expr mean? 5 Answers 5 ...
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jQuery AJAX file upload PHP

...ript to look like this: $('#upload').on('click', function() { var file_data = $('#sortpicture').prop('files')[0]; var form_data = new FormData(); form_data.append('file', file_data); alert(form_data); $.ajax({ url: 'uploa...
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Rails 2.3-style plugins and deprecation warnings running task in Heroku

...x applications .. To avoid this injection in Rails 3, include the rails_12factor gem in your application. (Heroku Ruby Support 2013-10-26) The rails_12factor gem is also required in rails 4. If this gem is not present in your application, you will receive a warning while deploying, and...
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Kotlin secondary constructor

...in with constructor but you need to skip default constructor class AuthLog(_data: String) class AuthLog { constructor(_data: String): this(_data, -1) constructor(_numberOfData: Int): this("From count ", _numberOfData) private constructor(_data: String, _numberOfData: Int) } For mo...
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MongoDB: Combine data from multiple collections into one..how?

...ns). You need to have some key in both collections that you can use as an _id. For example, let's say you have a users collection and a comments collection and you want to have a new collection that has some user demographic info for each comment. Let's say the users collection has the following ...
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How do I use HTML as the view engine in Express?

... routing. Instead, just use the static middleware: app.use(express.static(__dirname + '/public')); share | improve this answer | follow | ...
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Using AES encryption in C#

...g System.IO; using System.Security.Cryptography; namespace RijndaelManaged_Example { class RijndaelExample { public static void Main() { try { string original = "Here is some data to encrypt!"; // Create a new instanc...