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📜  Python循环

📅  最后修改于: 2020-12-23 05:12:36             🧑  作者: Mango

通常，语句是按顺序执行的：函数的第一个语句首先执行，然后第二个执行，依此类推。在某些情况下，您需要多次执行一个代码块。

编程语言提供了各种控制结构，允许更复杂的执行路径。

循环语句使我们可以多次执行一个语句或一组语句。下图说明了循环语句-

循环架构

Python编程语言提供了以下类型的循环来处理循环需求。

Sr.No. Loop Type & Description
1 while loop

Repeats a statement or group of statements while a given condition is TRUE. It tests the condition before executing the loop body.
2 for loop

Executes a sequence of statements multiple times and abbreviates the code that manages the loop variable.
3 nested loops

You can use one or more loop inside any another while, for or do..while loop.

循环控制语句

循环控制语句从其正常顺序更改执行。当执行离开作用域时，在该作用域中创建的所有自动对象都将被销毁。

Python支持以下控制语句。单击以下链接以查看其详细信息。

让我们简要介绍一下循环控制语句

Sr.No. Control Statement & Description
1 break statement

Terminates the loop statement and transfers execution to the statement immediately following the loop.
2 continue statement

Causes the loop to skip the remainder of its body and immediately retest its condition prior to reiterating.
3 pass statement

The pass statement in Python is used when a statement is required syntactically but you do not want any command or code to execute.