25 lines
755 B
Markdown
25 lines
755 B
Markdown
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---
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title: List Extend Method
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localeTitle: 列表扩展方法
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---
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## 列表扩展方法
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列表有很多方法，您可以通过在python控制台中键入`help(list)`来探索所有这些方法。 其中之一是扩展函数，正如名称所示，通过将列表的所有项（作为参数传递）添加到结尾来扩展列表。
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#### 示例用法
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```py
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cities = ["San Francisco", "Los Angeles", "New York"]
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cities_in_texas = ["San Antonio", "Austin", "Dallas"]
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cities.extend(cities_in_texas)
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print(cities)
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```
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#### 产量
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```
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["San Francisco", "Los Angeles", "New York", "San Antonio", "Austin", "Dallas"]
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```
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#### 更多信息：
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可以在[此处](https://docs.python.org/3.6/tutorial/datastructures.html)找到`extend()`的官方文档
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