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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=1739696322-SoQuHlSpp79AswoQMXZ6cbIgwopSuFPC-0-44efd9c8411d51d0abff4a0881d06809)
![](https://epubservercos.yuewen.com/E31CF8/16992237404787606/epubprivate/OEBPS/Images/38839_62_3.jpg?sign=1739696322-JYBi9OixA5YrqK6TquDo3DSQj1fYr5iw-0-c203a7cbbe6efbee9bf52a7d6d2f61a4)
示例代码如下:
![](https://epubservercos.yuewen.com/E31CF8/16992237404787606/epubprivate/OEBPS/Images/38839_63_1.jpg?sign=1739696322-cdQtGnTRfX86uvqey3oETB1rC4kl3XTb-0-3b116eed57b492fc9a2e21d4fa2ce6c7)
通过Python指令运行文件。
![](https://epubservercos.yuewen.com/E31CF8/16992237404787606/epubprivate/OEBPS/Images/38839_63_2.jpg?sign=1739696322-f8te5pJPJ70pbr8aWjgh7Qugq3TDsbU3-0-102bb052ea61c6ebe03a075ed85a4042)
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=1739696322-JahB9pQMTDDBt3LupOBps9mTfUOYIJe3-0-7622d7d1dc99f9cea712a26974a39118)
![](https://epubservercos.yuewen.com/E31CF8/16992237404787606/epubprivate/OEBPS/Images/38839_63_4.jpg?sign=1739696322-r9eJKcaO7XZwe4lS6dRfxvrE7avY6AZ0-0-b879febe200ae53b6d16d6285761f4b7)
示例代码如下:
![](https://epubservercos.yuewen.com/E31CF8/16992237404787606/epubprivate/OEBPS/Images/38839_64_1.jpg?sign=1739696322-sFoo7bou33mado7yvaEIKGZ9yrZ5ACXi-0-6838fda39ad341be54de2a27dae16ce7)
通过Python指令运行文件。
![](https://epubservercos.yuewen.com/E31CF8/16992237404787606/epubprivate/OEBPS/Images/38839_64_2.jpg?sign=1739696322-Pt2OG7tr13unuPdJsfXcpQmjwH8zOz22-0-37ba5e7527db5fb909e7dbbe7c476d62)
注意:在输出结果中没有3