sequence control structure

  Introduction In the field of automatic control of production machinery, PLC sequence control system has a wide range of applications. However, different manufacturing machines require different design of ladder diagrams of control systems. At

Sequence and control structure         There was a great God who said that the program can be as long as three kinds of structure. In fact, the computer developed for so many years, the three major structures used today. They are: Order   control  

Class diagram, object diagram, role diagram: I. Basic Graph categories in UML:In UML 2, there are two basic graph categories: structure diagram and behavior diagram. Each UML diagram belongs to the two diagrams. The purpose of the structure diagram

Data structure (c) In the past, it was difficult and abstract to get started with the data structure. In this review, we analyzed and reviewed the data structure in detail and split the data structure. After a few days of study, I began to have a

Control Structure (I), control structure ( The role of the control structure is to control the execution sequence of statements in a program. It is the key to the structured program design. The basic principle of structured program design is

Recommended reading: jquery code to achieve a picture carousel effect (i) In the previous article to introduce the JavaScript implementation of the image Carousel effect (a) Let the picture beat up, here we realize the image sequence node jump

Preface: Third, it is easy to name, because according to the suggestions of netizens. So I changed it to Asp.net control development. Well, let's get started. I talked about the basic concepts of composite controls in the previous section. Today I

The TCP/IP programming interface provides a variety of system calls to help you effectively use the protocol. A wide range of TCP stack code, deep into the kernel level of the complete call sequence can help you understand the TCP stack. In this

1. SequenceThe sequence type has the same access pattern: each of its elements can be obtained by specifying an offset. Multiple elements can be obtained one at a time by slicing operations. The subscript offset is from 0 to the total number of

Abstract: With the development of the motherland's modernization, the construction of new urban transportation-underground railway is in the ascendant. With the continuous development of automation technology, the centralized control and management