10 recommended articles about if conditional statements

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: &nbs

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

Introduction: I have explained to you a multiple-selection elseif statement before. Although this statement can make multiple judgments, when used, it requires writing a lot of if statements, which makes our program more readable. Inconveniently, 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.

2. Detailed explanation of the "elseif statement" example of PHP conditional control statement

Introduction: We have learned the "if...else statement" before and know that our "if...else statement" can only choose two results, either true or false. But what should we do when multiple conditions appear? What does it mean to have multiple items? To give an example, if there is a class exam, and after the exam results come out, the teacher will classify: those with a score of 90 or above are excellent; those with a score between 60-90 are good, and those with less than 60 are considered It's a failing grade. Under these multiple conditions, we need to use our "elseif statement".

3. Detailed explanation of the "if statement" example of PHP conditional control statement

##Introduction: In all programming languages, such as C language. JAVA, etc., all have if statements, including PHP of course. The function of the if statement is to select and execute different code fragments according to conditions.

4. Getting started with Python if statement

# #Introduction: When programming, you often need to check a series of conditions and decide what measures to take accordingly. In Python, if statements allow us to check the current state of the program and take appropriate action accordingly. 5.1 A simple example Below is a short example that demonstrates how to use if statements to correctly handle special situations. Suppose we have a list of cars and want to print out the name of each car in it. For most cars, the name should be printed with the first letter in capital letters, except for a car named "BMW", which should be printed in all caps. The following code iterates through a list and prints the car names in it with the first letter in uppercase, except for the car name "bmw", in all uppercase

5.

Summary Several ways of writing if during python learning

##Introduction: Small problems encountered in python example learning , I changed the question and needed to display the results of each file. This can be done with lists and if statements. The end of the article is the original question and answer

6.

in sql Detailed explanation of iif statement

Introduction: IIf returns one of two numerical or string values ​​determined by logical testing one. Syntax Number

7. How to use if statements in Linux shell script programming (conditional judgment)

Introduction: This article mainly introduces the use of if statements in Linux shell script programming. Please refer to it

8. Several types of if statements in js Optimize code writing

Introduction: UglifyJS is a tool for compressing and beautifying javascript. In its In the documentation, I saw several methods for optimizing if statements.

9. Nginx if statement plus regular expression to implement string truncation

Introduction: This article mainly introduces the Nginx if statement plus regular expression to realize the string truncation function. This function may be needed in special occasions. It is one of NGINX's weird tricks. Friends who need it can Refer to the following

10. PHP introductory tutorial Detailed explanation of operators and control structure processes

Introduction: This article mainly introduces the operator and control structure process of the PHP introductory tutorial, and analyzes in detail the basic assignment, auto-increment, comparison, ternary operator and Friends who need tips on using flow control statements such as if statements, switch statements, for statements, etc. can refer to

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