大约有 1,900 项符合查询结果(耗时:0.0170秒) [XML]

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Alternative to google finance api [closed]

...hoo Finance API posted on Google Code. For beginners, you can generate a CSV with a simple API call: http://finance.yahoo.com/d/quotes.csv?s=AAPL+GOOG+MSFT&f=sb2b3jk (This will generate and save a CSV for AAPL, GOOG, and MSFT) Note that you must append the format to the query string (f=..)...
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UnicodeDecodeError: 'utf8' codec can't decode byte 0x9c

...g the engine from C to Python did the trick for me. Engine is C: pd.read_csv(gdp_path, sep='\t', engine='c') 'utf-8' codec can't decode byte 0x92 in position 18: invalid start byte Engine is Python: pd.read_csv(gdp_path, sep='\t', engine='python') No errors for me. ...
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Generating an Excel file in ASP.NET [closed]

... CSV Pros: Simple Cons: It may not work in other locales or in different Excel configurations (i.e. List separator) Can't apply formatting, formulas, etc HTML Pros: Still pretty Simple Supports simple format...
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UTF-8: General? Bin? Unicode?

...icode_ci follows an old Unicode standard for comparisons. ij=ij, but ae != æ utf8_unicode_520_ci follows an newer Unicode standard. ae = æ See collation chart for details on what is equal to what in various utf8 collations. utf8, as defined by MySQL is limited to the 1- to 3-byte utf8 codes. ...
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Arrays vs Vectors: Introductory Similarities and Differences [closed]

...swered Feb 26 '13 at 0:28 John KällénJohn Källén 6,6352525 silver badges5050 bronze badges ...
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In C#, how can I create a TextReader object from a string (without writing to disk)

I'm using A Fast CSV Reader to parse some pasted text into a webpage. The Fast CSV reader requires a TextReader object, and all I have is a string. What's the best way to convert a string into a TextReader object on the fly? ...
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Recursively look for files with a specific extension

... find {directory} -type f -name '*.extension' Example: To find all csv files in the current directory and its sub-directories, use: find . -type f -name '*.csv' share | improve this answer...
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C#中数组、ArrayList和List三者的区别 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...List< T> 始终只具有一个维度。但是,您可以轻松创建数组列表列表列表。特定类型(Object 除外)的数组 的性能优于 ArrayList的性能。 这是因为 ArrayList的元素属于 Object 类型;所以在存储或检索值类型时通常发生装箱和取消...
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C#泛型(List)中基类和子类 怎么转换? - 更多技术 - 清泛网 - 专注C/C++及内核技术

...ChildClass> childList = ...Foo(List<BaseClass> baseList);需求:把子类列表传入函数Foo,Foo支持所有子类列表。方法一:Foo(ch...List<ChildClass> childList = ... Foo(List<BaseClass> baseList); 需求:把子类列表传入函数Foo,Foo支持所有子类列表。 方法...
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App Inventor 2 手机蓝牙及语音控制 - App Inventor 2 中文网 - 清泛IT论坛,有思想、有深度

...过程】  一、蓝牙知识准备   1. APP相关知识   列表选择框组件:便于用户从预设的条目中选择,如选择与手机配对的外部蓝牙设备;   蓝牙客户端组件:用于建立手机蓝牙与外部蓝牙设备的配对连接,并向外部蓝牙...