https://msdn.microsoft.com/en-us/library/435f1dw2.aspx When used as a declaration modifier, the new keyword explicitly hides a member that is inherited from a base class. When you hide an inherited member, the derived version of the member replaces t…

https://msdn.microsoft.com/en-us/library/ms173153.aspx In C#, a method in a derived class can have the same name as a method in the base class. You can specify how the methods interact by using the new and override keywords. The override modifier ext…

Here's a summary of the different parameter modifiers and how the behavior changes for each, when using them with value-typed and reference-typed variables. No modifier - value types Copy of value passed to method Method can read value No modifier -…

使用php5.5运行ecshop的时候出现如下错误Deprecated: preg_replace(): The /e modifier is deprecated, use preg_replace_callback instead in \ecshop\includes\cls_template.php on line 300 解决方法如下 打开ecshop的目录找到includes\cls_template.php 到第300行 把 return preg_replace("/{([^\}…

Part 1 http://techmytalk.com/2014/01/24/java-interview-reference-guide-part-1/ Posted on January 24, 2014 by Nitin Kumar JAVA Object Oriented Concepts Java in based on Object Oriented concepts, which permits higher level of abstraction to solve any p…

1. Introduction 1.1. About 1.2. Sphinx features 1.3. Where to get Sphinx 1.4. License 1.5. Credits 1.6. History 2. Installation 2.1. Supported systems 2.2. Compiling Sphinx from source 2.2.1. Required tools 2.2.2. Compiling on Linux 2.2.3. Known comp…

An interface is a reference type, in spite of the fact that it has no code at all. Thus, wecannot instantiate an interface. We can use it as a construct for the creation of new types.An interface defines a contract that is left to the class to implem…

近日遇到一个非常细的知识点,关于block的循环引用问题.相比非常多人都遇到了.也能顺利攻克了,至于block方面的技术文章.那就很多其它了.这里不再赘述,可是有这样一个问题: What the difference between __weak and __block reference? 使用场景: __block typeof(self) tmpSelf = self; [self methodThatTakesABlock:^ { [tmpSelf doSomething]; }]; 那…

https://msdn.microsoft.com/en-us/library/sf985hc5.aspx The abstract modifier indicates that the thing being modified has a missing or incomplete implementation. The abstract modifier can be used with classes, methods, properties, indexers, and events…

https://msdn.microsoft.com/en-us/library/bcd5672a.aspx The protected keyword is a member access modifier. A protected member is accessible within its class and by derived class instances. For a comparison of protected with the other access modifiers,…