what switch statement

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

Java learning notes (entry) _ multiple select structure switch statements, learning notes switchMultiple choice structure switch statement In java, a switch statement is provided for the multi-path Branch selection process. The switch statement

The CASE expression returns a value based on the conditional logic. In the development process, we often need to return a value for a column based on the conditional logic. In this CASE, we need to use the CASE expression. For example, the following

　Branch statementsThe if parenthesis can only be a logical expression, that is, the value returned by the expression can only be true or false.Blocks of code are enclosed in curly braces, and a block of code is usually executed as a whole (unless

Java syntax introduction (5): Conditional Control-general Linux technology-Linux programming and kernel information. The following is a detailed description. Conditional Control: if and switch 1: Condition Statement A condition statement is the

A switch statement is similar to a series of if statements that have the same expression. In many cases it is necessary to compare the same variable (or expression) with many different values and execute different code depending on which value it

In SQL Server, data archiving of super Large tables, using SELECT and Delete commands is very CPU-intensive and disk space, SQL Server must record the corresponding number of transaction logs, and using the switch operation to archive partition

One of the series "Let the cold wings fly"-talk about Oop, factory model and reconstruction from examples Http://www.cnblogs.com/wayfarer/articles/70453.html Fly with wings, lack of flexibility Code It's like a bird with frozen wings. If you

To better understand the design concept, the instance should be as simple as possible. However, as demand increases, programs will become more and more complex. At this time, there is a need to modify the design, and the reconstruction and design

If statements process two branches, the IF-else-If structure must be used when processing multiple branches. However, if there are many branches, the more nested if statement layers,ProgramIt is not only huge but also difficult to understand.

JavaScript Language 12 and javascript Language 12 When using the if statement, if you encounter many conditions, you should not continue using the if statement. JavaScript provides a more efficient alternative, that is, the switch statement, let's

When I first started writing a program, I liked to write if (){...} else if (){...} else {...}, as a result, my program seems to be an if statement. Some people once mentioned it to me, but I did not agree with it. I thought about how to implement

 The most basic program structure is executed from top to bottom according to the code writing order. Compile the work into a code sequence based on the functions to be completed, and then execute the work in this order. For example, the following

Java Performance Optimization Programming Tips Summary https://www.cnblogs.com/yueshutong/p/9555174.htmlThe performance of the program is directly affected by the quality of the code. In this article, I'll focus on some code-writing tips and

Only so called "advanced" usage, because I have not even the most basic use of the switch is not mastered, so, the following is actually the basic use of it! A switch statement is similar to a series of IF statements that have the same expression.

with wings to fly, lack of flexible code is like a bird with a broken wing. Can not fly, there is less of the spirit of the smart. We need to bring the code to the warm sun, let turn cold wings to fly again. With examples, by applying OOP, design

The C language is a total of 32 keywords, listed below:1.auto declaring automatic variablesBy default, all variables of the compiler default are auto2.int declaring integer variables3.double declaring double-precision variables4.long declaring long

Problem:Break plays a role in the loop flow control of the for loop, while loop, and stops execution of the statement after the break, jumps out of the loop, and jumps out of the loop control body;In the switch condition selection, there is no

Enumerations define a common set of data with dependencies and use them in a safe way in your code. If you are familiar with the C language, you will know that the enumeration in C language specifies that the correlation name is a set of integer

1.3.3 Switch statement When writing a program, often encountered by the different circumstances of the multiple-path problem, then can be nested IF-ELSE-IF statements to implement, but If-else-if statement use inconvenient, and error prone. In this