Articles on if condition statements 10 recommendations

Source: Internet
Author: User
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In front of you to explain a multi-choice ElseIf statement, although this statement can make a variety of judgments, but when used, need to write a lot of if statements, to our program readability inconvenience, in order to avoid the IF statement too much and improve the readability of our program, you can use the switch multiple judgment statement, In this chapter we will introduce you to the "switch statement". Switch statement syntax: switch (expr) {case expr1:statement; EXPR2: &nbs

1. An example of a "switch" statement in a PHP control statement

Introduction: Before you explain a multi-choice ElseIf statement, although this statement can make a variety of judgments, but the use of time, need to write a lot of if statements, to our program readability inconvenience, in order to avoid excessive if statement and improve the readability of our program, You can use the switch multiple judgment statement, and in this chapter we will introduce you to the "switch statement".

2. PHP Conditional Control Statement "ElseIf statement" example of the detailed

Introduction: Before we learned "if...else statement", we know that our "if...else statement" can only choose two results, not true, is false. But what happens when there are multiple conditions? What do you mean multiple pieces appear? Give an example to illustrate, if, there is a class test, the exam results, the teacher divided: 90 points above, is the outstanding performance, 60-90 points between, the result is good, less than 60 points, is the result of failure. Under these multiple conditions, we need to use our "elseif statement".

3. The "if statement" instance of the PHP conditional control statement

Introduction: In all programming languages, for example, C language. Java, and so on, there are if statements exist, of course, including PHP. The action of the IF statement is to execute a different code fragment according to the criteria selection.

4. Python entry if statement

Summary: When programming, you often need to check a set of conditions and decide what action to take accordingly. In Python, the IF statement allows us to examine 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 an if statement to handle a particular situation correctly. Let's say we have a list of cars and want to print out the name of each car. For most cars, the names should be printed in uppercase letters, but for cars named "BMW", they should be printed in full capitalization. The following code iterates through a list and prints the name of the car in an uppercase letter, but for the car named "BMW", it is all capitalized

5. Summarize the ways in which if is written in the Python learning process

Introduction: Python Instance learning small problems, I change the topic need to display the results of each file, you can use the list and if statements to complete, the article is the original topic and the answer

6. The IIF statement in SQL

Summary: IIf returns one of the two numeric or string values determined by the logical test. Grammar numbers

7. How to use the Linux shell scripting if statement (conditional judgment)

Introduction: This article mainly introduces the use of Linux shell script programming if statement, please refer to the use of it

8. How to improve the code of the IF statement in JS

Summary: UGLIFYJS is a tool for compressing and beautifying JavaScript, and in its documentation, I see several ways to optimize if statements.

9. Nginx If statement Home plus the expression to implement string truncation

Introduction: This article mainly introduces the Nginx if statement home Plus expression implementation string truncation function, special occasions may need this function, nginx one of the odd kinky skills, the need for friends can refer to the next

PHP Introductory tutorial operator and control structure flow

Introduction: This article mainly introduces the PHP introductory tutorial operators and control structure flow, combined with the example of the basic PHP assignment, self-increment, comparison, three-mesh operators and if statements, switch statements, for statements and other process Control statements, the use of skills, the need for friends can refer to the next

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