What does while mean in c language?

A while loop is a loop statement used to repeatedly execute a block of code while the loop condition is true. Here's how it works: The loop condition is evaluated. If the loop condition is true, the loop body is executed. After the loop body is executed, the loop condition is re-evaluated. If the loop condition is still true, repeat steps 2-3. The loop ends when the loop condition is false.

while loop

while is a loop statement in C language, used for Execute a block of code multiple times until the loop condition is no longer met.

Syntax

<code>while (循环条件) {
    循环体
}</code>

How it works

1. First, evaluate the loop condition.
2. If the loop condition is true, execute the loop body.
3. After executing the loop body, re-evaluate the loop condition.
4. If the loop condition is still true, repeat steps 2-3.
5. Once the loop condition is false, the loop ends.

Example

<code class="c">int main() {
    int i = 0;

    while (i < 10) {
        printf("%d ", i);
        i++;
    }

    return 0;
}</code>

This code will print out the numbers from 0 to 9 because of the loop condition i &lt ; 10 is true at the beginning of the loop and false when i reaches 10, causing the loop to end.

The above is the detailed content of What does while mean in c language?. For more information, please follow other related articles on the PHP Chinese website!