Article Introduction：PHP loop control statements include: 1. for loop, used to specify loop conditions and loop body, including three expressions, which control the initialization, conditions and operations after each iteration of the loop respectively; 2. while loop, as long as the specified conditions If it is true, execute the code block repeatedly; 3. do-while loop, execute the loop body once first, and then determine whether the condition is true; 4. foreach loop, used to traverse each element in the array and assign it to a variable.
Article Introduction：PHP is a widely used programming language that supports a variety of control structures, among which loop control structures are an important one. A loop control structure repeatedly executes one or more statements in a program until a specified condition is met. In this article, we will explore loop control structures and their implementation in PHP. 1. The for loop control structure The for loop control structure is a structure used to execute statements in a loop, which can repeatedly execute a block of code a specified number of times. The syntax of the for loop is as follows: for(initiali
Article Introduction：In Python, we have 3 loop control statements : break, continue and pass.
break
When the condition satisfies, the loop breaks and comes out of the loop.
for i in range(10):
print(i)
if i == 5:
break
# It will print : 0 t
Article Introduction：PHP study notes: Conditional statements and loop control [Introduction] In the process of learning the PHP programming language, conditional statements and loop control are basic knowledge points that must be mastered. Conditional statements are used to execute different codes according to different situations, while loop control allows us to repeat a piece of code multiple times. This article will introduce conditional statements and loop control in PHP in detail, and provide specific code examples. [1. Conditional Statements] Conditional statements allow us to selectively execute different code blocks under different circumstances. PHP provides a variety of conditional statements,
Article Introduction：The Lowdown: Why You Need Control Flow
Today, we’re diving into Python’s control flow—basically, giving your code the power to make decisions (if-else) and handle repetition (loops) without you doing all the typing.
If-Else: Making
Article Introduction：How to distinguish between inner loop and outer loop in Java: The inner loop is part of the outer loop body. When the loop body is executed, the outer loop enters the second loop. During this process, the inner loop needs to execute a complete loop that meets the conditions. ;The outer loop controls the number of rows, and the inner loop controls the number of each row.
Article Introduction：This article brings you relevant knowledge about MySQL. It mainly introduces the process control of MySQL stored procedures while, repeat, and loop loops. The code in the loop will run a specific number of times, or the loop will end when a specific condition is established. , let’s take a look at it, I hope it will be helpful to everyone.
Article Introduction：Loop control statement Conditional control statement, you can choose to execute different statements based on conditions. But sometimes you need to reuse a certain piece of code or function.
Article Introduction：Concept
It is possible to declare the control variable directly in the for loop declaration.
This is useful when the variable is only needed within the loop itself.
Advantages
Improves code readability and organization.
Limits the scope of the variable
Article Introduction：In our program development, sometimes we may need to reuse a certain piece of code or a certain function. For example, we need to enter "1*2*3*4...*100". If we let humans enter it, a lot of time will be wasted. Time is also very tedious, but in this case, there is a good way, which is to use our PHP loop control statement. Using PHP loop control statement, we can quickly complete the calculation. In PHP, we provide Four types of loop control statements: while, do...while, for, and foreach. In this chapter, I will first explain to you the first type of loop control statement, the "while" loop statement.
Article Introduction：This article will introduce to you how to control the time of loop operations in PHP. It has certain reference value. Friends in need can refer to it. I hope it will be helpful to everyone.
Article Introduction：Mysql's flow control statements may not be used most of the time, but if we need to write a stored procedure, we will use it. With flow control statements, mysql can write programs like other programming languages. Conditional branches and loop bodies are introduced below respectively.
Article Introduction：This article mainly introduces the methods and simple examples of while loop control in PHP. Interested friends can refer to it. I hope it will be helpful to everyone.
Article Introduction：The loop structures in PHP are for loop, while loop, do-while loop and foreach loop. Detailed introduction: 1. for loop, the initialization expression is used to initialize the value of the loop control variable, the conditional expression is used to determine whether the loop continues to execute, and the increment expression is used to control the change of the loop control variable; 2. while loop, the conditional expression is used To determine whether the loop continues to execute; 3. do-while loop, first execute the loop body code once, and then determine the conditional expression; 4. foreach loop, etc.
Article Introduction：PHP's infinite loop will not report an error; an infinite loop refers to a loop that cannot be terminated by its own control. In programming, it refers to a program that cannot be terminated by its own control; and an infinite loop is not an error because the program wants it to loop forever; if If the infinite loop compilation reports an error and stops compilation, then the program that requires an infinite loop cannot be implemented.
Article Introduction：The difference between when-type loops and until-type loops is that "until-type loops perform at least one operation"; when-type loops refer to loop structures that are judged before the loop body is executed, and enter the loop when the conditions are met, otherwise the loop ends; and until-type loops The type loop structure first executes the loop body once and then judges the control conditions.
Article Introduction：This article mainly introduces the detailed use of loop control statements in JavaScript, including the use of break statements and continue statements. Friends who need it can refer to it.
