what use instead of vibrator

Use CSS3 instead of JS for interaction, and use CSS3 instead of JS for Interaction [CSS3 and JS] Anyone who knows about CSS knows that the implementation of CSS is the lowest level, and the implementation method and performance are not the same. JS provides similar scripts for interfaces; from the perspective of compar

Copyright belongs to the author.Commercial reprint please contact the author for authorization, non-commercial reprint please specify the source.Management policyLinks: http://zhuanlan.zhihu.com/Foundation/19569459Source: Know2014-07-07 Update: Apple fully uses instancetype instead of ID in iOS 8Steven Fisher: It's good to use instancetype as long as a class returns its own instance.@interface Foo:NSObject

What can you bring to your Activity with a combination instead of inheritance? Original link: Composition over inheritance,what It means for your activities Original Author: Josh Brown Development technology Front www.devtf.cn Translator: Chaossss Reviewer: mr.simple Status: Complete In fact, we have seen in many

As the pace of the internet grows faster, traditional requirements documents have become more difficult to adapt to the pace of the market, especially for agile teams, where redundant and nuanced requirements documents are already a burden (so long document leaders won't see them). Most teams now prefer to use prototypes directly instead of demand documents, but the so-called prototypes are not just drawing

Premise: Because the use of VBA code readability and poor extensibility, want to use Python implementation, to improve the reuse rate. The current idea is to write the basic information in Excel, when executing a macro, VBA calls Python code through the library, generate statistics, what library can I use to implement?

What makes Ubuntu choose Qt instead of GTK? A fact that is happening, Ubuntu is constantly qt!I've been complaining about the software Center,Today a look at the source code, unexpectedly have SOFTWARECENTER/UI/QML branch,Even though it's kinda ugly to run, But you can imagine that the future is definitely replacing the GTK version-----------------------------------------------------------------------------

, which means that only the required string objects are created. And if you've already used log4j, you're already familiar with the workaround for using the debug statement in the IF condition, but the slf4j placeholder is much more useful than this.This is the scenario you use in log4j, but this is certainly not interesting and reduces code readability because of the unnecessary cumbersome duplication code (boiler-plate code): 123

debug statement in the IF condition, but the placeholder of slf4j is much better than this one. This is the solution you use in log4j, but it is certainly not interesting and reduces the readability of the code because it adds unnecessary redundant code (boiler-plate code ): 123 if (logger.isDebugEnabled()) {logger.debug("Processing trade with id: " + id + " symbol: " + symbol);} On the other hand, if you

the default auto, it must be an invalid height.Obviously you just need to specify an absolute height for the parent element, and there's no problem.However, in practical applications, height is usually not fixed, do not write the height of death, what solution?This can be used, this article introduces you to the method, and then look down ...Use padding instead

facilities."I personally have been advocating a point of view-the code level of WYSIWYG, when we see a piece of code, we know what this code can do, do not need too much rhetoric and comments, not much more, appropriate. To sum up in one word is "Yang".Like this article: 10 years of code, I am afraid to write some of the Code "dry" (yes, I do not think it is what "dry")."Judging whether the string is e-mai

algorithm instead of following the advice in Clause 43: V1.clear (); Copy (v2.begin () + v2.size ()/2, v2.end (), back_inserter (V1 )); Writing this is still more work than writing assign calls. In addition, although this code does not show a loop, there is indeed a loop in copy. As a result, the efficiency loss still exists. Copy can be used by inserting an iterator (for example, through inserter, back_inserter, or front_inserter --Should-- It is r

In Android development, we use most of the Java API, such as HashMap this API, the usage is very high, but for Android this memory-sensitive mobile platform, many times the use of some Java API does not achieve better performance, Instead, it consumes more memory, so for Android, this mobile platform also introduces more of its own API, such as Sparsearray, Array

In Android development, we use most of the Java API, such as HashMap this API, the usage is very high, but for Android this memory-sensitive mobile platform, many times the use of some Java API does not achieve better performance, Instead, it consumes more memory, so for Android, this mobile platform also introduces more of its own API, such as Sparsearray, Array

And use (.*?) If the regular expression matches abcd, only a and another problem is obtained: Use (.*?) D. Why does the regular expression match abcd instead of abcd? PHP code: about? Metacharacters are used for * zhihu's first question * "/(.*?) /"If the regular expression matches" abcd ", only" a "is obtained" And another problem:

original intention of MS to design message ing, but I feel it is easy to focus more on adding new messages, rather than saving memory.If we use the virtual function mechanism for implementation, I am afraid we must define a virtual function in the base class for every possible message, the first difficulty is that you cannot guess what messages will appear in the future, or determine

producer generally uses it as a feature to boast. Another method is to view the source code of the string implementation of the database. I generally do not recommend you try to get something from the library source code, but sometimes this is the only way to find out what you want to know. If you select this method, remember that string is a basic_string The easiest thing to check is the possible class constructor. Check whether it adds reference

2014-07-07 Update: Apple fully uses instancetype instead of ID in iOS 8 Steven Fisher: It's good to use instancetype as long as a class returns its own instance. @interface Foo:nsobject -(ID) Initwithbar: (Nsinteger) bar; Initializer + (ID) Foowithbar: (Nsinteger) bar; Convenience constructor @end For simple constructors (convenience constructor), you should always

Why is it recommended to use multiple processes instead of multithreading in Python? --an article to a colleague Recently looking at Python multi-threading, often we will hear the veteran said: "Python under the multi-threading is chicken, recommend the use of multi-process!" "But why do you say so?" To know it, but also to know the reason why. So we have the fo

the conditional attribute, so the compiler can do a great job when the condition attribute is applied. Condition attributes are used on methods, so you must write the code used under different conditions into different methods. When you want to generate different codes for different conditions, use the condition attribute instead of the # If/# endif block. Many programming veterans

When writing C + + code, keep in mind a word: should never call CreateThread. Instead, you should use the Visual C + + Run-time library function _beginthreadex.As if the CreateThread function is a tiger, why does Microsoft want to develop this function?From the relevant information found on the Internet, now a summary of the relevant staff to thank.From "Windows core Programming":The CreateThread function i