86 lines
1.8 KiB
Markdown
86 lines
1.8 KiB
Markdown
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---
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title: String Split Method
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localeTitle: 字符串拆分方法
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---
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`split()`函数通常用于Python中的字符串拆分。
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#### `split()`方法
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模板： `string.split(separator, maxsplit)`
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`separator` ：分隔符字符串。您可以根据此字符拆分字符串。例如。它可能是 ” ”， ”：”， ”;”等等
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`maxsplit` ：基于`separator`拆分字符串的次数。如果未指定或-1，则根据`separator`所有匹配项拆分字符串
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此方法返回的分隔字符串的列表`separator`
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#### 例子
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1）在空格上拆分字符串：“”
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```python
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string = "freeCodeCamp is fun."
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print(string.split(" "))
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```
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输出：
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```python
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['freeCodeCamp', 'is', 'fun.']
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```
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2）用逗号分隔字符串：“，”
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```python
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string = "freeCodeCamp,is fun, and informative"
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print(string.split(","))
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```
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输出：
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```python
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['freeCodeCamp', 'is fun', ' and informative']
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```
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3）未指定`separator`符
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```python
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string = "freeCodeCamp is fun and informative"
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print(string.split())
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```
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输出：
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```python
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['freeCodeCamp', 'is', 'fun', 'and', 'informative']
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```
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注意：如果未指定`separator`符，则会删除**所有**空格的字符串
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```python
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string = "freeCodeCamp is fun and informative"
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print(string.split())
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```
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输出：
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```python
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['freeCodeCamp', 'is', 'fun', 'and', 'informative']
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```
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3）使用`maxsplit`拆分字符串。这里我们将字符串拆分为两次：
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```python
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string = "freeCodeCamp is fun and informative"
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print(string.split(" ", 2))
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```
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输出：
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```python
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['freeCodeCamp', 'is', 'fun and informative']
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```
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#### 更多信息
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查看[有关字符串拆分](https://docs.python.org/2/library/stdtypes.html#str.split)的[Python文档](https://docs.python.org/2/library/stdtypes.html#str.split)
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