while循环语句执行流程
    英文回答：
    The execution flow of a while loop can be described as follows:
    1. The condition of the while loop is evaluated. If the condition is true, the code block inside the loop is executed. If the condition is false, the loop is terminated and the program continues with the next line of code after the loop.
    2. After executing the code block inside the loop, the condition is evaluated again. If the condition is still true, the code block is executed again. This process continues until the condition becomes false.
    3. Once the condition becomes false, the loop is terminated and the program continues with the next line of code after the loop.
    4. If there are no more lines of code after the loop, the program terminates.
    While loops are commonly used when we want to repeat a certain block of code until a specific condition is met. The condition is typically a Boolean expression that evaluates to either true or false. If the condition is initially false, the code block inside the loop will not be executed at all.
    Here is an example of a while loop in Python:
    python.
    count = 0。
    while count < 5:
        print("Count:", count)。
        count += 1。
    In this example, the condition `count < 5` is evaluated before each iteration of the loop. As long as the condition is true, the code block inside the loop is executed. The `count` vari
able is incremented by 1 in each iteration. The loop will terminate when the condition becomes false, i.e., when `count` is equal to 5.
    中文回答：
    while循环的执行流程可以描述如下：
    1. 首先，while循环的条件会被评估。如果条件为真，则执行循环内的代码块。如果条件为假，则终止循环，并且程序继续执行循环之后的下一行代码。
    2. 在执行完循环内的代码块后，条件会再次被评估。如果条件仍然为真，则再次执行代码块。这个过程会一直持续，直到条件变为假。
    3. 一旦条件变为假，循环终止，程序继续执行循环之后的下一行代码。
    4. 如果循环之后没有更多的代码行，则程序终止。
    当我们想要重复执行某个代码块直到满足特定条件时，通常会使用while循环。条件通常是一个布尔表达式，其结果为真或假。如果条件最初为假，则循环内的代码块根本不会被执行。
    下面是一个使用Python的while循环的示例：
    python.
while语句怎么退出    count = 0。
    while count < 5:
        print("Count:", count)。
        count += 1。
    在这个示例中，条件`count < 5`在每次循环迭代之前都会被评估。只要条件为真，就会执行循环内的代码块。`count`变量在每次迭代中递增1。当条件变为假时，也就是`count`等于5时，循环将终止。

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