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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=1739257631-vLpYC05qCNurTD3eCeI5IIJn6NhX35WL-0-7fa5be8d848a929a7404302dc3a9d582)
![](https://epubservercos.yuewen.com/E31CF8/16992237404787606/epubprivate/OEBPS/Images/38839_62_3.jpg?sign=1739257631-Cw3uoovOS93UMiVuSEi0n4sWtTc6PZwX-0-73ab2f13bc9f9cf831a2024b21a0deff)
示例代码如下:
![](https://epubservercos.yuewen.com/E31CF8/16992237404787606/epubprivate/OEBPS/Images/38839_63_1.jpg?sign=1739257631-lglkEYmylso0tLjR4zLnRnRwgSkdrGxP-0-d0cdb2cb9ba7bc5fd24262c735325b7c)
通过Python指令运行文件。
![](https://epubservercos.yuewen.com/E31CF8/16992237404787606/epubprivate/OEBPS/Images/38839_63_2.jpg?sign=1739257631-6NCZtTQanTBbTCkmNRT7ZuGxyOoYbPxz-0-9108c61e6b6fc268096d47d1dc04358b)
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=1739257631-amUycn218JWdCKdd3y63nIOuVPlvSQNY-0-9a90d53dbeef1d8d8957249ca12b57f9)
![](https://epubservercos.yuewen.com/E31CF8/16992237404787606/epubprivate/OEBPS/Images/38839_63_4.jpg?sign=1739257631-vUKYOrtP8TactOOhFopUhF6X1kjVH2ge-0-a055fe0fd21c9846f080ee18b6dcbd3e)
示例代码如下:
![](https://epubservercos.yuewen.com/E31CF8/16992237404787606/epubprivate/OEBPS/Images/38839_64_1.jpg?sign=1739257631-8NkqDJ97TY0jHvQQy0CIyWRtdnbqbW6h-0-fad85262f8e9836e0f4730dbc8e94b55)
通过Python指令运行文件。
![](https://epubservercos.yuewen.com/E31CF8/16992237404787606/epubprivate/OEBPS/Images/38839_64_2.jpg?sign=1739257631-gK8kzrw5aKnom58p8hJua2AI0RRBLatM-0-a404e1475d32df2beb62062eb38b9aa5)
注意:在输出结果中没有3