overwatch case

Copy Code code as follows: --Simple Case function Case Sex When ' 1 ' THEN ' male ' When ' 2 ' THEN ' woman ' Else ' other ' end --case search function case when sex = ' 1 ' THEN ' man ' When sex = ' 2 ' THEN ' female ' Else ' other ' end In both of these ways, you can achieve the same

The need for each product is a description of a specific problem in the real world, and some of the problem descriptions can be very intricate, so that when we analyze it, we feel we are not able to do it or even get overwhelmed. Demand analysis is the basis of system design and development, the quality of demand analysis will directly affect the subsequent design and development, the serious impact on the success of the system. The use case diagram i

This paper mainly introduces the design process of use case model, first design use case model from system layer, then refine each use case of system layer recognition, design more detailed use case model. The use-case model is the starting point of the development process a

First, the principle is to explain the problem:switch (expression){case constant Expression 1: statement 1;....Case constant Expression 2: statement 2;Default: statement;}1.default is that if you do not have a matching case, default is not required.The statement after 2.case can be used without curly braces.the judging

Select Case StatementExecutes one of several sets of statements based on the value of an expression. Select Case testexpression[Case Expressionlist-n[Statements-n]] . . .[Case Else Expressionlist-n[Elsestatements-n]]End Select ParametersTestexpression An arbitrary numeric or string expression. Expressionlist-n An

Creating a use case diagram is only the basic and simplest step to complete case modeling. The core of case modeling is to write case documents, also known as case conventions or case descriptions. As the name suggests, the use

Case-driven demand process practices--------------------------------------------------------------------------------From: Computer World Network Author: Xu Feng [2004/01/05]I. Conflict of requirementsAccording to Chao's authoritative statistics, although the software engineering method has been greatly developed and improved since the "Software Crisis" was proposed, the software project success rate last year was still less than 30%, the vast majority

Tags: table header economics name Check NTC US meta case when functionCase has two formats. Simple case function and case search function.--Simple Case function Case Sex When ' 1 ' Then ' men ' When ' 2 ' then ' women ' Else ' other ' END --

use case diagram. composition: System boundaries. Participants. Case. Relationship. Participant: Actor is not a person, but a role to play when participating in a use case. If the action of one role is done by another role agent, establish a dependency between the role and the other role. How to identify the participants. who is providing information to the sys

first, the concept use case diagram (Diagram): Primarily used to describe the behavior of systems and the relationships between functions, is a graph that describes the relationship between participants (Actor) and use cases, and use cases and use cases. Use case diagram = actor + use case + Relationship II, use use case