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5.3 跳转语句
跳转语句能够改变程序的执行顺序,包括break、continue和return。break和continue用于循环体中,而return用于函数中。本节先介绍break和continue语句,对于return语句,将在后面的章节中介绍。
5.3.1 break语句
break语句用于强行退出循环体,不再执行循环体中剩余的语句。
![](https://epubservercos.yuewen.com/E31CF8/16992237404787606/epubprivate/OEBPS/Images/38839_62_2.jpg?sign=1738864638-Yv0pQhfJ3Krs1lNSh2rWdifmS5Z65rER-0-1e62a8c9664ab43198d514714b2204ec)
![](https://epubservercos.yuewen.com/E31CF8/16992237404787606/epubprivate/OEBPS/Images/38839_62_3.jpg?sign=1738864638-nSuxke1toeI1DCUTZ0OBI370jFVzseFR-0-c0cb77cbb94a8962ea9d8146a34e088b)
示例代码如下:
![](https://epubservercos.yuewen.com/E31CF8/16992237404787606/epubprivate/OEBPS/Images/38839_63_1.jpg?sign=1738864638-Hl684UdV0JxdebrAYCgsFIqtLCFOQoBy-0-fade26530b9ff468c229b961f72a5dec)
通过Python指令运行文件。
![](https://epubservercos.yuewen.com/E31CF8/16992237404787606/epubprivate/OEBPS/Images/38839_63_2.jpg?sign=1738864638-KNc2r47SucJNDucdg9vEIrspMENTOhBK-0-0d1a9bf805f9ce3922fa466729c1fe90)
只循环了3次,item==3之后的数据不会被打印出来
5.3.2 continue语句
continue语句用于结束本次循环,跳过循环体中尚未执行的语句,接着进行终止条件的判断,以决定是否继续循环。
![](https://epubservercos.yuewen.com/E31CF8/16992237404787606/epubprivate/OEBPS/Images/38839_63_3.jpg?sign=1738864638-32xLvFNEdMubaL74MZVPGU0rJTR6M6RV-0-70f32bb6d8c9bd91361574216f68057c)
![](https://epubservercos.yuewen.com/E31CF8/16992237404787606/epubprivate/OEBPS/Images/38839_63_4.jpg?sign=1738864638-ORffVTK2qdClQ72rOcozPWpsKFAIhxuz-0-7e526f2f27a607d285b9a423c806fc03)
示例代码如下:
![](https://epubservercos.yuewen.com/E31CF8/16992237404787606/epubprivate/OEBPS/Images/38839_64_1.jpg?sign=1738864638-nYncmVZmZc1qZAs6PtTaoZBA369m9xVa-0-732883910baa535e4124edef76dcc9ad)
通过Python指令运行文件。
![](https://epubservercos.yuewen.com/E31CF8/16992237404787606/epubprivate/OEBPS/Images/38839_64_2.jpg?sign=1738864638-Sf9xrRVivhxk0I9dWsfVLK7LrsOAHqUx-0-38c3926d28d4b3c4ae30784ef247dbf0)
注意:在输出结果中没有3