As an important equipment of network security, Rongteng network shunt is the most critical equipment of network monitoring front-end in the whole network security field. Today we detailed network traffic monitoring! Network Splitter TapATCA Network splitter supports multi-user high densityNetwork splitter DPI Detection five-tuple filterNetwork
I. Introduction
Recently, I saw an article about qt's window for scaling and sliding, but its code is incomplete. Then I wrote the complete code and made it open-source. A slider in the center of the window can dynamically change the size of the subwindow, and hidden buttons can be used to quickly scale the subwindow. It is as follows:Ii. Details 1. Code
(1) slidingwindow. h
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# Ifndef slidingwindow_h
# Define slidingwindow_h
# Include
Class slidingwindow: Public qw
ObjectiveMany of today's best software uses "multi-vision" technology.The so-called "multi-vision" refers to the same frame window to display multiple views simultaneously.By using this technique, we can provide the user with more information in the limited control of the frame, and make the user interface more friendly, and enhance the operability of the software.Split typeMFC supports two types of splitter windows: static and dynamic. static
Transferred from: http://jameswxx.iteye.com/blog/1041173One: JstackSyntax format for jstack command: Jstack 1. Different Java Virtual machine thread dump creation method and file format is not the same, different JVM version, dump information also differs. In this article, just take Sun's hotspot JVM 5.0_06 as an example.2. In the actual operation, often a dump of information, not enough to confirm the problem. It is recommended to generate three dump messages, and if each dump points to the sam
with half-width spaces, even if the number of characters does not reach the maximum length.
Date type: The data type (date type) of the column used to specify the date (month and day) to store.
More data typesDefault valueYou can specify the default when you create a column.create table tb1(nid int not null default 2,num int not null) Self-incrementIf you set the self-increment column for a column, you do not have to set this column when i
appropriate header file. If you plan to useCExtStatusControlBarIn several places of your application, it's reasonable to add it to yourStdafx. hFile. Collapse copy code#include "CExtStatusControlBar.h"
If you usedCStatusBar, You shoshould replace itCExtStatusControlBarEverywhere in the project. Collapse copy codeCExtStatusControlBar m_wndStatusBar;
Sample
TheStatuspanesSample project shows how to use the class in practice (including how to place controls into the control bar's PANES ).List of
CREATE () function of the cbutton class to create the function. The function prototype is as follows:Bool create (lpctstr lpszcaption, DWORD dwstyle, const rect rect, cwnd * pparentwnd, uint NID );Lpszcaption is the text displayed on the button;Dwstyle specifies the button style. It can be a combination of the button style and window style. The values include:Window style:Ws_child subwindow, which must haveThe ws_visible window is visible and genera
Using the AppWizard of VC, you can easily implement ToolTip of tool bar and menu item, or display help information on the status bar, however, it is not easy to display ToolTip and control information on status bar on the control of the dialog box. Now we can use the WM_SETCURSOR and TTN_NEEDTEXT messages in VC to achieve our goal. The procedure is as follows:
1. Use MFC AppWizard of VC to generate an SDI or MDI Application
2. Edit the string resource of the dialog box Control
For example: I
cbutton ();Use the CREATE () function of the cbutton class to create the function. The function prototype is as follows:Bool create (lpctstr lpszcaption, DWORD dwstyle, const rect rect, cwnd * pparentwnd, uint NID );Lpszcaption is the text displayed on the button;Dwstyle specifies the button style. It can be a combination of the button style and window style. The values include:Window style:Ws_child subwindow, which must haveThe ws_visible window is
(this );M_tt.activate (true );
Cwnd * PW = getdlgitem (idc_check1); // get the window pointerM_tooltip.addtool (PW, "check1"); // Add........}In bool pretranslatemessage (MSG * PMSG), addCode Bool cwndyour: pretranslatemessage (MSG * PMSG){{M_tt.relayevent (PMSG );}Return cparentclass: pretranslatemessage (PMSG );}
In this way, the corresponding tooltip is displayed when you move the cursor over the corresponding subwindow.
To dynamically change the display content of A tooltip, follow th
Python-operated SQL pymsql is a module used to operate MySQL in Python. its usage is almost the same as that of MySQLdb.
1. download and install
Pip3 install pymysql
II. operation and use
1. execute SQL
#! /Usr/bin/env python #-*-coding: UTF-8-*-import pymysql # create connection conn = pymysql. connect (host = '2017. 0.0.1 ', port = 3306, user = 'root', passwd = '000000', db = 'T1') # Create a cursor = conn. cursor () # execute the SQL statement and return the number of rows affected by the re
Django's routing system: First, basic usage:1.path (' index ', Views.index), # Create a URL map by way of the class 2.path (' home ', views. Home.as_view ()), # By means of regular expressions note that this method cannot be associated by path, otherwise the regular expression is invalid, through the From Django.conf.urls import URL, and then through the URL (regx,views, Kwargs,name) matches the regular expression of the URL 3.url (R ' detail-(\d+) ', Views.detail),4.url (R ' detail-(\d+)-(\d+)
registered SMS" and "send a registered message") based on the classpath, stored in the map. The key is the class name and the Taskqueue (name in the model that stores the asynchronous task) takes a number of tasks out of the taskqueue and maintains real-time maintenance of the number of tasks currently being processed and the number of tasks processed Updates the number of tasks currently being processed and the number of tasks processed to the specific task execution in the Threadinstance inst
follows:
urls.py
URL (r ' ^index/', views.index),
url (r ' ^detail-(key\d+). html/', Views.detail),
Note: The way URLs are implemented here are similar to http://127.0.0.1/detail-key1.html, not previous detail. Nid=key1 the way. this way, for the weight of the site, search engines prefer the first way. The weight is better, will let the search engine think the webpage is static.
views.py
User_dict = {'
key1 ': {' name ': ' Root1 ', ' eam
OpenSSL's EVP Series 5---Evp_encrypt series of functions (II.)
---According to OpenSSL doc/crypto/evp_encryptinit.pod and Doc/ssleay.txt cipher.doc part of the translation and their own understanding written
(Author: dragonking, Mail:wzhah@263.net, posted in: http://gdwzh.126.com OpenSSL Professional Forum, version: openssl-0.9.7)
In the previous article we introduced the basic parts of the Evp_encrypt series functions, and this article will introduce some of their extensions, some parameter set
Http://dev.mysql.com/doc/refman/5.7/en/data-type-overview.html
V. Operation of table contents 1, increase Insert into table (column name, column name ...) values (value, value, value ...)
Insert into table (column name, column name ...) values (value, value, Value ...), (value, value, value ...)
Insert into table (column name, column name ...) select (column name, column name ...) from table 2. By deleting Delete from table
Delete from table where id=1 and Name= ' Alex ' 3, change Upd
name
modify default value: ALTER TABLE TESTALTER_TBL alter I SET defaults;
Delete defaults: Alter TABLE TESTALTER_TBL ALTER I DROP default;
5. Basic data types MySQL data types are broadly divided into: numeric, time, and string (1) Integer type tinyint, smallint, mediumint, Int/intrger, bigint (2) Floating-point number type float, double (3) Date and time Date, datetime, timestamp, time, year (4) String type Char speed fast varchar saves space 6. Table Content Operations (1) Increase In
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