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.NET4.5新特性 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...配置其实仅仅是一个含有程序启动时所需方法列表的简单文件，所以当程序启动的时候，后台JIT(Backgroud JIT)运行并转译这些方法至机器代码。
特性5：垃圾回收(GC)（后台GC垃圾清理）
*对于.Net程序来说，垃圾回收(GC)的确是一...
php发送get、post请求的几种方法 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...data
<span style="white-space:pre"> </span>)
);
//生成请求的句柄文件
$context = stream_context_create($opts);
$html = file_get_contents('http://localhost/e/admin/test.html', false, $context);
echo $html;
?>
方法4：用fsockopen函数打开url，以get方式获取完整的数据...
App Inventor 2 如何实现网络版注册登陆功能？ - App Inventor 2 中文网 - ...
...件事情。一般用于简单不耗时的任务（如数据存储、拷贝文件、显示图片等本地操作）。
异步：你做了一件事，此时你并不知道成功与否，这时你不用傻傻地等着，可以先做第二件事情，第一件事情做好了会给你发通知，你只...
python pandas remove duplicate columns
...probably with the duplicate column titles.
For a sample table file 'dummy.csv' I made up:
Time H1 N2 Time N2 Time Relative
3 13 13 3 13 0
1 15 15 1 15 14
14 19 19 14 19 14
19 5 5 19 5 1
using read_table gives unique columns and works properly:
In [151]: df2 =...
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=..)...
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...
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?
...
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'
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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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