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while loop do...while loop In the previous tutorial, we learned about for loop. In this tutorial, we will learn about while and do..while loop. while loop The syntax of the while loop is: while (testExpression) { // the body of the loop } How while loop works? The while loop ev...
问While循环中的PHP语法错误EN函数源码： /** byte字节单位转换函数 * @param int $byte * @retu...
The basic loop structure in Python is while loop. Here is the syntax.Syntax:while (expression) : statement_1 statement_2 ...The while loop runs as long as the expression (condition) evaluates to True and execute the program block. The condition is checked every time at the beginning of...
In the above example, we have used awhileloop to print the numbers from1to3. The loop runs as long as the conditionnumber <= 3isTrue. while Loop Syntax while condition: # body of while loop Here, Thewhileloop evaluatescondition, which is a boolean expression. ...
[ <> ] while condition loop statements; end loop; In this syntax, PostgreSQL evaluates the condition before executing the statements. If the condition is true, it executes the statements. After each iteration, the while loop evaluates the codition again. Inside the body of the while loop, yo...
While-loop是一种常见的编程语言结构,用于重复执行一段代码,直到指定的条件不再满足为止。它的语法通常由一个循环条件和一个代码块组成。 循环条件是一个布尔表达式,用于判断是否继续执行循环。如果循环条件为真(true),则代码块会被执行;如果循环条件为假(false),则循环结束,程序会继续执行循环之后的代码。 以下是一...
There is just one syntax fordo-whileloops: <?php $i=0; do { echo$i; } while ($i>0); ?> The above loop would run one time exactly, since after the first iteration, when truth expression is checked, it evaluates tofalse($iis not bigger than 0) and the loop execution ends. ...
We will examine each statement in more detail in the following section. WHILE loop The syntax of theWHILEstatement is as follows: WHILE expression DO Statements END WHILE TheWHILEloop checks the expression at the beginning of each iteration. If the expression evaluates toTRUE, MySQL will executes...
Syntax: do { execute the statements; } while (condition is true) Example -1: The following example print "Increment Number" with $x1 value as well as "Hello world" five times. <?php $x1=1; do { echo "Increment Number : $x1 "; echo "Hello...