html if statement example

[Shell] example of if, for, while flow statement and integer string comparison, shellwhile Preface: In fact, Shell is a command interpreter that explains the commands entered by the user and sends them to the kernel. In addition, Shell has its own

Example of a switch statement in PHP, Phpswitch statement Switch is a switching statement, so many friends only know the simple switch switch statement usage, the following tutorial small series for you to introduce the switch usage example. Only

There is only one sentence in a page that can be judgedWe often see the form in the HTML of the page like [if LTE IE 9] ... The code for [ENDIF] represents a statement that restricts certain browser versions to execute, so what are the rules for

We often see the form in the HTML of the page like [if LTE IE 9] ... The code for [ENDIF] represents a statement that restricts certain browser versions to execute, so what are the rules for these judgment statements? Please see below: In addition

Php process control statement. Php process control statements conditional control statements and cyclic control statements are two basic syntax structures. They are all used to control the program execution process and constitute the main syntax

How to Create helpcontextid in HTML Help Workshop, Press F1 in the vbprogram to pop up the corresponding context, the documents in chm format have been written, the tables of context and index file have been written. What should I do next? Please

IE condition comment judgment statement in HTML ( ), xxendif is a special syntax provided by IE, which is ignored by other browsers as annotations. Purpose: load the corresponding CSS or JS files according to different IE versions, as shown in the

PHP Control statements 1. If statement An If statement is an important feature in most languages, and it executes program segments based on conditions. The IF statement in PHP is similar to C: if (expr) Statement As discussed in the expression,

Chapter 4 SQL statement ProcessingBefore adjustment, we need to know some background knowledge. Only by knowing this background knowledge can we better adjust SQL statements.This section describes the basic process of SQL statement processing,

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