ng-Common Instructions

brief introduction The ng directive Angular provides out-of-the-box instructions, which are the most commonly used directives in development projects. ng-model: model directive ng-bind:Binding instructions ng-style: Style directive ng-switch: Select instructions ng-if/ng-show: Judgement directive ng-repeat:Loop directive Of course, ...

Posted on Thu, 27 Feb 2020 11:30:07 -0500 by ry4n0wnz

The algorithm of mask detection based on Artificial Intelligence

Due to the impact of the epidemic, mask detection has become an algorithm developed by various programmers. Baidu's face detection SDK works well, and they also open source the mask detection I use OPENCV based detection here The general idea may be to train the data sets of mobile phones with and witho ...

Posted on Thu, 27 Feb 2020 06:09:05 -0500 by JesuZ

The problem of page jitter when the input box is switched to get focus on ios mobile phone

Problem Description: When there are multiple input input input boxes on the page, when switching the input content back and forth, it will be found on ios mobile phone that when switching, the whole page shakes and returns to the original position, which is not a good experience Causes of this problem: It was caused by the introduction of a ...

Posted on Thu, 27 Feb 2020 03:22:03 -0500 by techek

Android Development Series 1 - Activity details

The    Activity class is a key component of Android Application Development (equivalent to the UIViewController class in IOS), which is simply a page. 1, Activity lifecycle    first of all, an Activity needs to experience several states in its life cycle, what is the meaning of eac ...

Posted on Wed, 26 Feb 2020 03:37:04 -0500 by phpjaco

C + + design pattern

C + + design pattern Introduction to design mode Object oriented design principles Key techniques of reconstruction Design pattern Component collaboration TemplateMethod (template method mode) Strategy Observer mode Single duty Decorator (decoration mode) Bridge (bridge mode) objects creating ...

Posted on Tue, 25 Feb 2020 21:01:49 -0500 by neox_blueline

Question: Codeforces Round #617(Div 3) (to be continued)

(ps. Beginner's solution, if any are inappropriate, please correct it) A . Array with Odd Sum (simulation) Brief Description: n integers are given, then any one of them can be assigned to other numbers, you can operate on any number of times, and ask if the sum of N numbers is odd.Obviously, the sum of ...

Posted on Tue, 25 Feb 2020 20:16:10 -0500 by harman

Android IOS hbuild experience sharing 2

The Android and ios basic configurations mentioned above. Next, let's talk about their main code implementation. In specific use, we usually push information to different users according to their needs, so we need to lock the mobile phone according to the mobile phone model and clientid. 1, Get mobile I ...

Posted on Tue, 25 Feb 2020 08:31:31 -0500 by webbnino

cf613 E Delete a Segment

meaning of the title There are (n < = 1E5) (n < = 1E5) (n < = 1E5) intervals. It is required to delete one interval so that the number of remaining intervals does not cover. thinking 2 Practice Line segment tree First, the interval given is in disorder, and then we can enumerate and del ...

Posted on Thu, 20 Feb 2020 01:33:16 -0500 by prasad_deba

On the competition of cool spleen

Catalog A - DRM Messages B - Game of Throwns C - Sheba's Amoebas A - DRM Messages meaning of the title Given A string, the length of the string must be even. First, divide the string into two parts with equal length, and then do the same processing for the two strings. The processing rule is to ...

Posted on Tue, 18 Feb 2020 08:32:12 -0500 by bliss322

Fast lean PDF reader for iPhone / iPad / iOs - tips and hints?

Recently, there are many problems about PDF drawing. Yes, you can easily render PDF using UIWebView, but this does not provide the performance and functionality you expect from a good PDF viewer. You can draw PDF pages To CALayer or UIImage . Apple even has sample code to show how to In Zoomable UIScrollview Draw large PDF But the s ...

Posted on Tue, 18 Feb 2020 05:11:59 -0500 by windyweather