您可能想与 """
def foo():
string = """line one
line two
line three"""
由于换行符和空格包含在字符串本身中，因此您必须对其进行后处理。如果您不想这样做，并且文本很多，则可能需要将其分别存储在文本文件中。如果文本文件不能很好地适合您的应用程序，并且您不想进行后处理，我可能会选择
def foo():
string = ("this is an "
"implicitly joined "
"string")
如果要对多行字符串进行后处理以修剪掉不需要的部分，则应考虑PEP 257中textwrap介绍的对文档字符串进行后处理的模块或技术：
def trim(docstring):
if not docstring:
return ''
# Convert tabs to spaces (following the normal Python rules)
# and split into a list of lines:
lines = docstring.expandtabs().splitlines()
# Determine minimum indentation (first line doesn't count):
indent = sys.maxint
for line in lines[1:]:
stripped = line.lstrip()
if stripped:
indent = min(indent, len(line) - len(stripped))
# Remove indentation (first line is special):
trimmed = [lines[0].strip()]
if indent < sys.maxint:
for line in lines[1:]:
trimmed.append(line[indent:].rstrip())
# Strip off trailing and leading blank lines:
while trimmed and not trimmed[-1]:
trimmed.pop()
while trimmed and not trimmed[0]:
trimmed.pop(0)
# Return a single string:
return '\n'.join(trimmed)
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