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深入解析ATL - 文档下载 - 清泛网 - 专注C/C++及内核技术
...第1章 你好，ATL
1.1 什么是ATL
1.2 创建COM服务器
1.3 插入COM类
1.4 添加属性和方法
1.5 实现附加接口
1.6 脚本支持
1.7 添加永久性
1.8 添加和激发事件显示全部信息第2版序
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前言
致谢
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Uniq by object attribute in Ruby
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LaneLane
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Algorithm to calculate the number of divisors of a given number
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edited Jun 13 '12 at 11:16
oers
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How to convert a string of numbers to an array of numbers?
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My 2 cents for golfers:
b="1,2,3,4".split`,`.map(x=>+x)
backquote is string litteral so w...
Useful code which uses reduce()? [closed]
...me a lot...
Here's some cute usages:
Flatten a list
Goal: turn [[1, 2, 3], [4, 5], [6, 7, 8]] into [1, 2, 3, 4, 5, 6, 7, 8].
reduce(list.__add__, [[1, 2, 3], [4, 5], [6, 7, 8]], [])
List of digits to a number
Goal: turn [1, 2, 3, 4, 5, 6, 7, 8] into 12345678.
Ugly, slow way:
int("".join(ma...
How to get a float result by dividing two integer values using T-SQL?
...ers, you can cast them to be floats first:
SELECT CAST(1 AS float) / CAST(3 AS float)
or
SELECT CAST(MyIntField1 AS float) / CAST(MyIntField2 AS float)
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How do you run multiple programs in parallel from a bash script?
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psmearspsmears
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54
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Calculating arithmetic mean (one type of average) in Python
... return float(sum(numbers)) / max(len(numbers), 1)
>>> mean([1,2,3,4])
2.5
>>> mean([])
0.0
In numpy, there's numpy.mean().
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Using Python 3 in virtualenv
... the default version of Python (2.7). On one project, I need to use Python 3.4.
22 Answers
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How to get the first column of a pandas DataFrame as a Series?
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143
>>> import pandas as pd
>>> df = pd.DataFrame({'x' : [1, 2, 3, 4], 'y' : [4, 5...