大约有 2,100 项符合查询结果（耗时：0.0214秒） [XML]
Best/Most Comprehensive API for Stocks/Financial Data [closed]
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Yahoo's api provides a CSV dump:
Example: http://finance.yahoo.com/d/quotes.csv?s=msft&f=price
I'm not sure if it is documented or not, but this code sample should showcase all of the features (namely the stat types [parameter f in the query ...
C++虚继承的概念 - C/C++ - 清泛网 - 专注C/C++及内核技术
...基类直接或间接派生的派生类中的构造函数的成员初始化列表中都要列出对虚基类构造函数的调用。但只有用于建立对象的最派生类的构造函数调用虚基类的构造函数，而该派生类的所有基类中列出的对虚基类的构造函数的调用...
In Python, how do I determine if an object is iterable?
...nswered Apr 10 at 11:24
Pekka KlärckPekka Klärck
1,99311 gold badge1616 silver badges1919 bronze badges
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How do I retrieve the number of columns in a Pandas data frame?
...ction will give you result something like as below.
If you are using read_csv method of Pandas without sep parameter or sep with ",".
raw_data = pd.read_csv("a1:\aa2/aaa3/data.csv")
raw_data.info()
<class 'pandas.core.frame.DataFrame'>
RangeIndex: 5144 entries, 0 to 5143
Columns: 145 entries...
Turn off Chrome/Safari spell checking by HTML/css
...nswered Dec 9 '14 at 8:09
Timo KähkönenTimo Kähkönen
10.5k88 gold badges6161 silver badges101101 bronze badges
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Replace non-ASCII characters with a single space
I need to replace all non-ASCII (\x00-\x7F) characters with a space. I'm surprised that this is not dead-easy in Python, unless I'm missing something. The following function simply removes all non-ASCII characters:
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支撑Github的开源技术 - 开源 & Github - 清泛网 - 专注C/C++及内核技术
...e），Showcase根据项目属性来组织、定义一系列的开源项目列表，可以更清晰的发现你所需要 Github在3月19号开放了新的项目展示页面（Showcase），Showcase根据项目属性来组织、定义一系列的开源项目列表，可以更清晰的发现你所...
Align two inline-blocks left and right on same line
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@ValerioColtrè I agree that the empty space is the most (and possibly, only!) annoying thing about this approach. Explicitly managing your font-size is rather undesirable. I propose a different solution. Note that the .header:after decor...
Conditional import of modules in Python
...er) version of the standard json module.
– Seppo Erviälä
Oct 20 '12 at 17:07
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开源邮件传输代理软件 -- Postfix 介绍 - 开源 & Github - 清泛网 - 专注C/C++及内核技术
...fix会在内存中保存一个有长度限制的当前不可到达的地址列表。这样就避免了对那些目的地为当前不可到达地址的邮件的投递尝试。从而大大提高了系统的性能。
1.5、postfix的安全性
postfix通过一系列的措施来提高系统的安...