10 recommended articles about switch

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 there are too many if 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. Syntax of switch statement: switch (expr) { case expr1: statement;                  break; case expr2: &

1. 10 recommended articles about if conditional statements

##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 too many if statements and 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 ...

2. 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.

3. Detailed explanation of "switch" statement examples of PHP control statements

##Introduction: I explained to you a multiple-selection elseif statement earlier. Although this statement can be used for multiple judgments, when used, a lot of if statements need to be written to make our program more readable. 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 will introduce the "switch statement" to you.

4.

WeChat applet component: switch switch selector interpretation and analysis

Introduction: switch switch selector component description: switch, switch selector. You can only choose or not choose. This type belongs to form control or query condition control.

5.

Interpretation and Analysis of WeChat Mini Program Components Switch Switch Selector

Introduction: Interpretation and analysis of WeChat applet components switch switch selector,

##6.

Detailed introduction to the Data Url generation tool C# version 2 Version of the sample code

Introduction: Why is there a second edition? First of all, thank you to classmate jenlynn for her message: "There are two ways to generate DATA URL, C# and HTML5. The base64 encoding generated by the same picture seems to be different. Is there any way to make them reach an agreement? ". Secondly, bugs and anomalies were discovered while researching this issue. Bug: Image encoding judgment problem, no matter what extension, PNG encoding is used by default. Exception: ContextSwitchDeadlock interface preview detected. Improvement method for related issues. Image encoding judgment problem

7. Detailed introduction to the WeChat applet switch component

Introduction: This article mainly introduces the relevant information about the detailed introduction of the switch component of the WeChat applet. Friends in need can refer to the following

8. Detailed explanation of JavaScript chain structure serialization

## Introduction: 1. Overview In JavaScript, there are too many chain pattern codes, as follows: if_else: if(...){ //TODO }else if(...){ //TODO }else{ // TODO } switch: switch(name){ case ...:{ //TODO break; } case ...:{ //TODO ..

##9.

小Example of how the program dynamically controls the opening and closing of the switch

##Introduction: In the process of developing a small program , we may encounter some switch control functions, such as whether to subscribe or whether to turn on 4G. At this time we need to set up a switch page. What we are going to introduce today is how the small program can dynamically control the opening and closing of the switch

10.

Why python does not need three Operator and switch

##Introduction: The editor below will bring you a brief discussion on Python Why ternary operator and switch are not needed. The editor thinks it’s pretty good, so I’ll share it with you now and give it as a reference. Let’s follow the editor and take a look.

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