once

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I'm currently coding an app which is basically structured that way : main.py + Package1 +--- Class1.py +--- Apps + Package2 +--- Class1.py +--- Apps So I have two questions : First, inside both packages, there are modules needed by all Apps, eg : re. Is there a way I can import a module for the whole package at once, instead of importing it in every file that needs it ? And, as you can see, Class1 is used in both packages. Is there a good way to share it between both packages to avoid code duplication ? 回答1: I would strongly recommend

本文转载于: 猿2048 网站⇒ https://www.mk2048.com/blog/blog.php?id=hj1babckaa EventEmitter 简介 EventEmitter 是 NodeJS 的核心模块 events 中的类，用于对 NodeJS 中的事件进行统一管理，用 events 特定的 API 对事件进行添加、触发和移除等等，核心方法的模式类似于发布订阅。 实现 EventEmitter 1、EventEmitter 构造函数的实现 文件：events.js function EventEmitter() { this._events = Object.create(null); } /* * 其他方法 */ // 导出自定义模块 module.export = EventEmitter; 在构造函数 EventEmitter 上有一个属性 _events ，类型为对象，用于存储和统一管理所有类型的事件，在创建构造函数的时候导出了 EventEmitter，后面实现其他方法的代码将放在构造函数与导出中间。 2、事件最大监听个数 在 EventEmitter 中监听的每一类事件都有最大监听个数，超过了这个数值，事件虽然可以正常执行，但是会发出警告信息，其目的是为了防止内存泄露。 默认事件最大监听个数 EventEmitter

参考了LandscapeEdModeComponentTool代码，魔改以后可在运行时动态增加LandscapeComponent，更换贴图，按需加载地图 主要是为了landscape的优越性能，LOD等 为实现无限地图提供了思路，只要把google的卫星地图动态加载进来，就可以实现无限大的真实地景 .c文件 #pragma once #include "CoreMinimal.h" #include "Components/ActorComponent.h" #include "RuntimeGenerateTerrain.generated.h" class ALandscapeProxy; class UMaterialInstanceDynamic; class UMaterialInstance; class ULandscapeComponent; UCLASS( ClassGroup=(Custom), meta=(BlueprintSpawnableComponent) ) class FLIGHTSIM_API URuntimeGenerateTerrain : public UActorComponent { GENERATED_BODY() public: // Sets default values for this component's

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I only want my JavaScript to run once, but I cannot control how many times the javascript file is executed. Basically I'm writing a tiny JS snippet into a CMS, and the CMS is actually calling it 5-10 times. So solutions like this: function never_called_again(args) { // do some stuff never_called_again = function (new_args) { // do nothing } } never_called_again(); Don't seem to work because as soon as my snippet is run again from the top the function is re-declared, and 'do some stuff' is re-evaluated. Perhaps I'm just not doing it properly,

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: There are many articles on SO and the web in attempts to handle 404's and exceptions gracefully. From what I have read the best advice seems to be have a route for 404's like so: routes.MapRoute( "404-PageNotFound", "{*url}", new { controller = "ErrorController", action = "PageNotFound" } ); Then for other errors have the HandleError atribute on the Controller and have CustomErrors turned on in web.config so it goes to the error.cshtml page. However I have read that if you get a exception that does not set the HTTP code to 500 the

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: I am using Zend_Search_Lucene to implement site search. I created separate indices for different data types (e.g. one for users, one for posts etc). The results are similarly divided by data type however there is an 'all' option which should show a combination of the different result types. Is it possible to search across the different indices at once? or do i have to index everything in an all index? Update: The readme for ZF 1.8 suggests that it's now possible to do in ZF 1.8 but I've been unable to track down where this is at in

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: We have over 150 projects which I have gathered together, reconfigured and optimised into multiple TeamCity configurations, with multiple build agents, to try to improve our build server performance which currently builds in a highly sequential manner. The mix of technologies (Web, dotNet, VB6 and COM+) and system architecture means that there are various steps (configurations) which can now run in parallel but which need to come together further down the track. This is a very simplified dependency scenario but representative of a problem we

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: This question already has an answer here: Increasing the maximum number of tcp/ip connections in linux 4 answers I am going to develop a TCP server application. I am on the "choose server" step. My TCP server is going to have 2000+ clients and one socket to each client. Is there limit for amount of created sockets depending on the operating system? Which operating system permits more open sockets at a given time? 回答1: Yea there are limitations, but you'll probably never get close to them ( connections is not the same as connecting or

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I am setting lots of properties with a series of set calls e.g. this.set('prop1', value1); this.set('prop2', value2); ....... Is there a way to do this in one call (similar to when I create an object)? E.g. this.setMultiple({prop1: value1, prop2: value2}); I still don't fully grok Ember's inheritance model. Maybe something along the lines of reopen ? 回答1: There is actually a function for this: setProperties . You can use it like this: obj.setProperties({prop1: value1, prop2: value2}) obj should be instance of Ember.Object . 回答2: As @oruen

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I'm trying to clone an entire repository onto my machine using linux. I used git clone <url> I then went into the folder where it was downloaded and typed git branch in the terminal. It's only showing me master and not other branches which were in the remote repository. How do I clone all branches? I know that for each branch in the remote I can separately use git checkout -b <name of local branch> origin/<name of remote branch> but is there any way other than that? 回答1: (1) Inside git local repostitory, create a new sh file touch