36 lines
1.6 KiB
Markdown
36 lines
1.6 KiB
Markdown
---
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title: Python Escape Sequences
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localeTitle: Python转义序列
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---
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可以在[此处](https://docs.python.org/3/reference/lexical_analysis.html#strings)找到转义序列列表
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转义序列允许将特殊字符包含在字符串中。
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```
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>>> print('Single quote strings can have \'single\' quotes if they are escaped')
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"Single quote strings can have 'single' quotes if they are escaped"
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>>> print("Double quote strings can have \"double\" quotes if they are escaped")
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'Double quote strings can have "double" quotes if they are escaped'
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>>> print("Multiline strings\ncan be created\nusing escape sequences.")
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Multiline strings
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can be created
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using escape sequences.
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>>> print("Backslashes \\ need to be escaped.")
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Backslashes \ need to be escaped.
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```
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可以通过在字符串前加上`r`或`R`来使用_原始_字符串，这允许包含反斜杠而无需转义它们 -
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```
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>>> print(r"Backslashes \ don't need to be escaped in raw strings.")
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Backslashes \ don't need to be escaped in raw strings.
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>>> print(r"An odd number of backslashes at the end of a raw string will cause an error\")
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File "<stdin>", line 1
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print(r"An odd number of backslashes at the end of a raw string will cause an error\")
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^
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SyntaxError: EOL while scanning string literal.
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```
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＃转义序列的一些例子。 逃脱序列
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\\打印反斜杠
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\`打印单引号
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“打印双引号
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\\ ASCII铃声响铃铃声（例如xterm） \\ b ASCII退格（BS）删除前一个字符 \\ n添加换行符。 |