10 recommended articles about switch

前面给大家讲解了一种多重选择elseif语句，虽然这种语句可以进行多种判断，但是使用的时候，需要写很多的if语句，给我们程序的可读性带来不便，为了避免if语句过多和提高我们程序的可读性，可以使用switch多重判断语句，本章我们就给大家介绍“switch语句”。switch语句的语法：switch (expr) { case expr1: statement; break; case expr2: &

1.有关elseif的文章推荐10篇

简介：前面给大家讲解了一种多重选择elseif语句，虽然这种语句可以进行多种判断，但是使用的时候，需要写很多的if语句，给我们程序的可读性带来不便，为了避免if语句过多和提高我们程序的可读性，可以使用switch多重判断语句，本章我们就给大家介绍“switch语句”。switch语句的语法：switch (expr){ case ...

2.总结关于form组件注意点

简介：这篇文章主要介绍了微信小程序 form组件详解的相关资料,需要的朋友可以参考下表单：将组件内的用户输入的 提交主要属性：效果图： ml:<

3.php有关故障处理的详细介绍

简介：在面向对象的程序中，我曾经见过的最大的switch/case语句所具有的条件超过了20个。在运行期间，这个代码模块每次都要执行所有的条件。每个条件都负责创建一个新的对象，这个对象被用于与应用程序API的外部使用这进行通信。对其中一个执行某些常规的故障处理之后，我开始研究应用程序所实现的接口。令我吃惊的是，switch/case语句中引用的每个类都在实现相同的接口！随后要在switch/case语句...

4.枚举值如何使用？总结枚举值实例用法

简介：这篇文章主要介绍了C# 从枚举值获取对应的文本描述详解的相关资料,需要的朋友可以参考下C# 从枚举值获取对应的文本描述详解有时枚举值在显示时，需要显示枚举值对应的文本串。一种方案是在调用的地方使用switch或者if来判断枚举值，然后赋给不同的文本串，但这样一来，如果有较多的地方都用到的时候就会比较麻烦。当然有人说，这种情况下，可以针对这种枚举值封装一个方法，然后来调用。那如果有多个枚举类型都有这...

5.关于php条件控制语句实例用法的10篇文章推荐

简介：前面给大家讲解了一种多重选择elseif语句，虽然这种语句可以进行多种判断，但是使用的时候，需要写很多的if语句，给我们程序的可读性带来不便，为了避免if语句过多和提高我们程序的可读性，可以使用switch多重判断语句，本章我们就给大家介绍“switch语句”。switch语句的语法：switch (expr){ case ...

6.Summary of code examples of elseif statements based on PHP

## Introduction: I explained to you a multiple-selection elseif statement earlier. Although this statement can make multiple judgments, when used, it requires writing a lot of if statements, which brings inconvenience to the readability of our program. In order to avoid if If there are too many statements and to improve the readability of our program, we can use switch multiple judgment statements. In this chapter, we will introduce the "switch statement" to you. The syntax of the switch statement: switch (expr){ case ...

7.10 recommended articles about elseif statements

Introduction: I explained to you a multiple selection elseif statement earlier, although this statement can be used for multiple selections. This kind of judgment, but when using it, we need to write a lot of if statements, which brings inconvenience to the readability of our program. In order to avoid too many if statements and improve the readability of our program, we can use switch multiple judgment statements. In this chapter we Let me introduce to you the "switch statement". The syntax of the switch statement: switch (expr){ case ...

8.10 recommended articles about switch

Introduction: I explained to you a multiple selection elseif statement earlier, although this statement can be used in multiple ways. Judgment, but when using it, you need to write a lot of if statements, which brings inconvenience to the readability of our program. In order to avoid too many if statements and improve the readability of our program, you can use switch multiple judgment statements. In this chapter we will Let me introduce to you the "switch statement". The syntax of the switch statement: switch (expr){ case ...

9.10 recommended articles about if conditional statements

Introduction: I explained to you a multiple selection elseif statement earlier, although this statement can be Multiple judgments, but when used, we need to write a lot of if statements, which brings inconvenience to the readability of our program. In order to avoid too many if statements and improve the readability of our program, we can use switch multiple judgment statements. This chapter We will introduce to you the "switch statement". The syntax of the switch statement: switch (expr){ case ...

10.PHP advanced object-oriented design pattern: factory Pattern usage examples

Introduction: The biggest switch I have ever seen in an object-oriented program The /case statement has more than 20 conditions. During runtime, this code module executes all conditions every time. Each condition is responsible for creating a new object, which is used to communicate with external uses of the application's API. After performing some general troubleshooting on one of them, I started looking at the interfaces implemented by the application. To my surprise, every class referenced in the switch/case statement is implementing the same interface! When later adding new conditional statements to the switch/case statement, I recommend using the factory pattern instead.

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