Pressure testing tools:
The ab command is Apache's own stress testing tool:
ab is the abbreviation of apachebench command.
Principle of ab: The AB command creates multiple concurrent access threads to simulate multiple visitors accessing a URL address at the same time. Its testing goal is URL-b ...
Posted on Sun, 16 Jun 2019 13:40:54 -0700 by J4rod
Generally speaking, if you want a picture to show only specific areas or shapes, you can use Path or Xfermodel in Android. Of course, some simple shapes can also be achieved in xml by using shapes'tags. I won't tell you how shapes and Paths are used here. This blog will tell you howUse Xfermode for picture-picking, which is still a common feat ...
Posted on Sun, 16 Jun 2019 12:21:32 -0700 by tim
Regarding RadioButton dynamic setting background color and font color, stepped through many pits, then I summarized all the problems encountered and solutions, for your reference, I hope to help you.
1. First, let's write the xml file of the background color selected and unchecked by radiobutton.
Create a new file under the drawable folder ...
Posted on Sun, 16 Jun 2019 11:59:28 -0700 by jbloom
Chapter 3 Implementation of Crawling Queue
> In the second article, the process of deep crawling is realized, but one of the obvious problems is that each crawling is not implemented as an independent task; that is, serial crawling of links in Web pages; therefore, this article will focus on concurrent crawling of web pages.
> The go ...
Posted on Sat, 15 Jun 2019 16:31:11 -0700 by Q
Next, we analyze the RTMP_SendPacket function. Let's first look at the message format chunk of rtmp.
head Composition of RTMP
The head of RTMP is chunk head in the protocol. As mentioned earlier, a Message + head can be divided into one or more chunks. In order to distinguish these chunks, a chunk head must be needed. The specific imple ...
Posted on Thu, 13 Jun 2019 14:16:29 -0700 by Instigate
Configuration and Verification of Custom Public Number URL
Interface configuration information
Log on to the Wechat Public Platform and click the Basic Configuration button on the left navigation bar. The following information will appear:
In this interface, we can set the custom server address URL, Token, message encryption and decryption ...
Posted on Thu, 13 Jun 2019 13:48:40 -0700 by Enlightened
In Android, there are five layouts:
FrameLayout (Frame Layout)
Linear layout, this thing, can be understood as a div from the outer frame. First of all, it is listed on the screen from top to bottom. Each Linear Layout can be divided into vertical layout (android ...
Posted on Thu, 13 Jun 2019 13:33:21 -0700 by hyd_guy
XML File Processing
There are several ways to process XML files. Here we introduce xml.etree.ElementTree as ET.
Note: The xml.etree.ElementTree module is not secure against malicious structured data.
Each element object has the following properties:
1. tag: string object, which represents the type of data representation;
2. attrib: dictionary o ...
Posted on Tue, 11 Jun 2019 16:18:04 -0700 by stakes
As verified in the previous article, structured inclusion references still do not change the properties of their value types.
However, it has been unclear how the structure stores (contains) reference types.
Later, it came to the conjecture that the structure only contained a "storage address pointer" of the reference t ...
Posted on Tue, 11 Jun 2019 11:59:33 -0700 by alexvgtb
Not much to say, let's see the effect first.
Generally, many people on the Internet, RecycleView Item expand the effect of the idea is through the add and remove of item to achieve, but what problems will the effect of the graph appear?
Each item has rounded corners
Each item has spacing
If it is also achieved through add and remove, how t ...
Posted on Mon, 10 Jun 2019 13:42:54 -0700 by hubbardude