Python 字符串格式化
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Python string formatting
提问by localhost
I see you guys using
我看到你们在使用
url = '"%s"' % url # This part
>>> url = "http://www.site.com/info.xx"
>>> print url
http://www.site.com/info.xx
>>> url = '"%s"' % url
>>> print url
"http://www.site.com/info.xx"
Is it advanced Python? Is there a tutorial for it? How can I learn about it?
是高级 Python 吗？有它的教程吗？我怎样才能了解它？
回答by dwc
It's common string formatting, and very useful. It's analogous to C-style printf formatting. See String Formatting Operationsin the Python.org docs. You can use multiple arguments like this:
这是常见的字符串格式，非常有用。它类似于 C 风格的 printf 格式。请参阅Python.org 文档中的字符串格式操作。您可以像这样使用多个参数：
"%3d\t%s" % (42, "the answer to ...")
回答by Dan Lew
That line of code is using Python string formatting. You can read up more on how to use it here: http://docs.python.org/library/stdtypes.html#string-formatting
该行代码使用 Python 字符串格式。您可以在此处阅读有关如何使用它的更多信息：http: //docs.python.org/library/stdtypes.html#string-formatting
回答by Andrea Ambu
It is not advanced, you can use ' or " to define a string.
它不是高级的，您可以使用 ' 或 " 来定义字符串。
Check the documentation.
检查文档。
