Implement interruptible tasks based on Quartz.NET
Implement interruptible tasks based on Quartz.NET
Quartz.NET is an open source job scheduling framework that is well suited for routine work, periodic polling for database synchronization, periodic mail notifications, periodic processing of data, and so on.Quartz.NET allows developers to schedule jobs based on time intervals (or days).It imple ...
Posted by jon2396 on Tue, 11 Jun 2019 18:59:03 +0200
Deeply Understanding the Drawing Process of Android View (IV)_Draw
Before we introduced Measure and layout, let's start with Draw. Start with ViewRootImpl. ViewRootImpl#performDraw
private void performDraw() {
if (mAttachInfo.mDisplayState == Display.STATE_OFF && !mReportNextDraw) {
return;
}
//Do you need to redraw the logo?
final boolean fullRedrawNeede ...
Posted by edking1 on Tue, 11 Jun 2019 00:44:00 +0200
Oracle Exercise 2 - Exercises and Answers
I got the answer from somewhere, but some of the answers were incorrect. I made some changes here. I passed the test.
There are two questions that I can't answer.^^
1. Query the number of all students whose grades are higher in the course of "c001" than in the course of "c002";
SELECT a.sno FROM
(SELECT * FROM sc WHER ...
Posted by coja1 on Mon, 10 Jun 2019 01:07:38 +0200
MFC+VS2012+Image/Video+Function
Creating mfc with vs is easier than qt, but the interface is far less attractive. 0 Create Solutions 1 Configuration environment
Add two files that need to use opencv
http://download.csdn.net/detail/songzige/9477119
Add it to the header file and source file, respectively
In... Add several include references to the.Dlg.h file:
#include ...
Posted by Fari on Sun, 09 Jun 2019 21:23:15 +0200
[Learning RabbitMQ from Official Documents] 4. Routing Patterns of RABBITMQ-ROUTING
In the previous tutorial, we built a simple logging system. We have been able to send log messages to many consumers.In this installment, we'll make some changes to add a feature to it that allows it to subscribe to only a part of the message. For example, we can only point fatal error messages to log files (saving disk space), and we can print ...
Posted by ac1982 on Sun, 09 Jun 2019 21:19:27 +0200
23 Design Patterns (18) - Command Patterns
Command mode
Concept
II. Structure
Specific cases
Macro commands
5. Advantages of command mode
Introduction
In programming, it is often designed that one object needs to request another object to invoke its method to achieve some purpose. If the request does not want to deal with the requestee directly or directly, since the re ...
Posted by Chris.P on Sun, 09 Jun 2019 21:04:31 +0200
JS Action String
1: length
Get String Length
var str = "hello world";
alert(str.length); //11
2: Index
Gets the character at the specified position of the string through an index, but cannot change the value corresponding to that index
var str = "hello world"
alert(str[0]); //h
str[0] = "H";//str will not be affected, but no errors will be reported
...
Posted by bj_ on Sun, 09 Jun 2019 18:09:03 +0200
MVC, Modularization, Dependency Injection of Basic Concepts and Usages of angualrJS
MVC
<!doctype html>
<html ng-app>
<head>
<meta charset="utf-8">
</head>
<body>
<div ng-controller="HelloAngular">
<p>{{greeting.text}},Angular</p>
</div>
</body>
<script src="js/angular-1.3.0.js"></script>
...
Posted by entropicsinkhole on Sun, 09 Jun 2019 00:24:43 +0200
ES6 Digital Extension
Previous remarks
This article will introduce ES6 digital extension in detail.
Exponential operator
The only JS grammatical change introduced by ES2016 is the power operator, which is a mathematical operation that applies exponential to cardinality. The existing Math.pow() method of JS can perform power calculation, but it is also one of t ...
Posted by kool_samule on Sat, 08 Jun 2019 22:47:52 +0200
C Ordering commonly used in basic engineering
Introduction - Start with the simplest insertion sort
Long, long ago, you might have learned some common sorting algorithms. At that time, computer algorithms were still a bit like math.
But I often think about the same kind of questions in my mind. What's the use (the deep contempt of the costume school by the silk practitioners). It's impos ...
Posted by natronp on Sat, 08 Jun 2019 19:39:58 +0200