teched definition

Like to read some Open-source project source, always will find that the great God's code always have some short and efficient macro definition, click to see, find obscure, not to mention learning, sometimes understanding is a difficult, but the macro definition itself is not so difficult, But write a good macro of course still need rich experience and technology, then say a macro

In Java, an array is considered an object When you define an array, there are two definitions: int[] A and int a[]; the second is a C + + array-defined method, with the first definition of Java recommendations. The general principle: any object must be initialized before being called. definition of 11-D arrays Defines a one-dimensional array that contains three elements //Method 1, first the new object, an

css| Project This tutorial mainly explains the definition of the style of common tags Li {list-style-image:url (images/disc.gif);} This style definition for Li is to use a picture for a list item instead of a small dot that is displayed. Of course, you can also display other effects, see the following definition in detail: 　　CSS

This is a simple example of generating a local report using the RDLC report definition file, the ReportViewer control. (This article is flawed, edited in 2011.10.29) First, create a new. Net4.0 Project: (The. NET Framework 2.0 of the following figure is changed to the. NET Framework 4.0----2011.10.29) The project is named Reportapp and creates two new folders Reports, datasets for the project. The Reports folder stores the report

Tags: level LTE body number causes nbsp ONS size optionThe Data definition language (Language, DDL) is a language in the SQL language set responsible for data structure definitions and database object definitions, consisting of Create, alter, and drop three grammars. database objects include tables, views, indexes, synonyms, sequences, and so on (table/view/index/syn/sequence). Let's start with an introduction to creating and managing tables and views

Tags: style blog http color ar sp Data div Art1. Simple introduction of physical and pinIn the development of the time will often use the serial interface, the general 9-pin serial interface is mostly. For example, as seen in:The male female head is used in the packaging of the connecting wire. However, a 90-degree angled pin package is used for the Development Board. For example, with:Each pin is defined as:2. Connection of male female head to MAX232When the male head is connected with the MAX2

"Transcoding" for each family may not be the same, but the logic is the same, I am sharing today is another Pat cloud on the narrowband high-definition transcoding, close to the "transcoding", more basic, theoretical knowledge will be relatively more. Share content mainly divided into two pieces, the first is to introduce what is narrowband high-definition transcoding, the second is to introduce and pat the

1. Simple introduction of physical and pinIn the development of the time will often use the serial interface, the general 9-pin serial interface is mostly. For example, as seen in:The male female head is used in the packaging of the connecting wire. However, a 90-degree angled pin package is used for the Development Board. For example, with:Each pin is defined as:2. Connection of male female head to MAX232When the male head is connected with the MAX232, we will find that according to the

This article mainly introduces the Python array definition method, and analyzes the Python one-dimensional array and two-dimensional array definition methods and related precautions in the form of examples, for more information about how to define Python arrays, see the following example. We will share this with you for your reference. The details are as follows: Python does not have an array data structur

Summary: (function () {}) (); and (function () {} ());2 of the syntax in JavaScript is related to the function keyword:functions Definition: function functionname (formalparameterlist) {functionbody}functions expression: function [functionname] (formalparameterlist) {functionbody}From the definition of syntax, the two are almost identical (the only difference is that the function expression can omit the fun

This example describes the parameter definitions and variable parameter usages of functions in Python. Share to everyone for your reference. Specific as follows: Just learn to use Python, especially when looking at some library source code, often see Func (*args, **kwargs) Such a function definition, this * and * * is a bit confusing. In fact, as long as the function parameter definition is clear, it is no

#ifndef __usbreg_h#define __usbreg_h/* USB device Interrupt definition usb_devintst usb_devinten usb_devintclr usb_devintdet*/#define FRAME_INT 0x00000001//Every 1MS to generate a frame interrupt, which is used in the transmission of the synchronization packet#define EP_FAST_INT 0x00000002//endpoints, set the endpoint priority level in the endpoint interrupt priority#define EP_SLOW_INT 0x00000004//endpoint with slow interrupt, set endpoint priority in

There are two scenarios for declaring a variable:1, one is the need to set up storage space. For example, int A has established a storage space at the time of declaration.2, there is no need to set up storage space. For example, the variable a in extern int A is defined in another file.A declaration is a name-identifier that is introduced to the compiler. It tells the compiler "This function or variable can be found somewhere, what it looks like".The definit