大约有 13,913 项符合查询结果(耗时:0.0321秒) [XML]

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How do you round a number to two decimal places in C#?

... Here's some examples: decimal a = 1.994444M; Math.Round(a, 2); //returns 1.99 decimal b = 1.995555M; Math.Round(b, 2); //returns 2.00 You might also want to look at bankers rounding / round-to-even with the following overload: Math...
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error: command 'gcc' failed with exit status 1 while installing eventlet

... need both python-dev and libevent-dev. Thanks! – Alex Whittemore May 17 '13 at 2:00 57 For fedor...
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Why does isNaN(“ ”) (string with spaces) equal false?

In JavaScript, why does isNaN(" ") evaluate to false , but isNaN(" x") evaluate to true ? 23 Answers ...
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PHP - iterate on string characters

... is much more efficient than the answer provided. – 0x476f72616e Oct 15 '18 at 3:10 6 Just note t...
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Why is the Android emulator so slow? How can we speed up the Android emulator? [closed]

I have got a 2.67   GHz Celeron processor, and 1.21   GB of RAM on a x86 Windows XP Professional machine. 77 Answer...
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Retrieve version from maven pom.xml in code

What is the simplest way to retrieve version number from maven's pom.xml in code, i.e., programatically? 11 Answers ...
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Difference between open and codecs.open in Python

There are two ways to open a text file in Python: 8 Answers 8 ...
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How to make unicode string with python3

... Literal strings are unicode by default in Python3. Assuming that text is a bytes object, just use text.decode('utf-8') unicode of Python2 is equivalent to str in Python3, so you can also write: str(text, 'utf-8') if you prefer. ...
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How do I install the yaml package for Python?

...pip install pyyaml If you want to install python yaml system-wide in linux, you can also use a package manager, like aptitude or yum: $ sudo apt-get install python-yaml $ sudo yum install python-yaml share | ...
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Drop all duplicate rows across multiple columns in Python Pandas

... What if my columns are not explicitly labelled? How do I select the columns just based on their index? – Hamman Samuel Feb 9 '17 at 21:42 ...