1、python本身使用来转义一些特殊字符，比如在字符串中加入引号的时候
s = 'i'm superman' print(s) # i'm superman
2、Python中反斜杠也可以用在一行结尾做续行符使用。
例：
hello = "This is a rather long string containing several lines of text just as you would do in C. Note that whitespace at the beginning of the line is significant." print(hello)
注意，其中的换行符仍然要使用 表示——反斜杠后的换行符被丢弃了。以上例子将如下输出：
This is a rather long string containing several lines of text just as you would do in C. Note that whitespace at the beginning of the line is significant.
Python中的转义字符：
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