大约有 2,100 项符合查询结果(耗时:0.0133秒) [XML]

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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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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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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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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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Return JSON response from Flask view

I have a function that analyzes a CSV file with Pandas and produces a dict with summary information. I want to return the results as a response from a Flask view. How do I return a JSON response? ...
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SQL select join: is it possible to prefix all columns as 'prefix.*'?

... answered Oct 22 '14 at 3:43 Xiè JìléiXiè Jìléi 11.9k1515 gold badges7070 silver badges9999 bronze badges ...
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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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app inventor什么时候需要用到字典块? - App Inventor 2 中文网 - 清泛网 ...

app inventor什么时候需要用到字典块?列表能完成字典的绝大部分功能,不过字典具有比列表更好的查找性能,因此如果要对数据结构执行大量的操作,建议优先使用字典。更多用法请查看文档:https: www fun123 cn referen 列表能完...
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蓝牙客户端组件(SPP经典蓝牙)vs BluetoothLE拓展(低功耗蓝牙)基础代码...

...经典蓝牙),特点是必须实现配对成功,才能显示在设备列表中。https://www.fun123.cn/reference/ ... tml#BluetoothClient 显示列表: 选设备: 断开当前连接的设备: 错误处理: --------------------- BluetoothLE拓展(低功耗蓝...
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How would you make a comma-separated string from a list of strings?

... ",".join(l) will not work for all cases. I'd suggest using the csv module with StringIO import StringIO import csv l = ['list','of','["""crazy"quotes"and\'',123,'other things'] line = StringIO.StringIO() writer = csv.writer(line) writer.writerow(l) csvcontent = line.getvalue() # 'list...