Python - 将字符串打印到屏幕,在输出中包含\n

Question

我有以下代码:

pattern = "something.*\n" #intended to be a regular expression

fileString = some/path/to/file

numMatches = len( re.findall(pattern, fileString, 0) )

print "Found ", numMatches, " matches to ", pattern, " in file."

我希望用户能够看到模式中包含的'\n'.此时,模式中的'\n'会在屏幕上写入换行符.所以输出如下:

Found 10 matches to something.*
 in file.

我希望它是:

Found 10 matches to something.*\n in file.

是的,pattern.replace("\n","\n")确实有效.但我想要它打印所有形式的转义字符,包括\ t,\ e等.任何帮助表示赞赏.

Answer 1

使用repr(pattern)打印\n您需要的方式.