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CentOS 6.4下Squid代理服务器的安装与配置 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...服务器的安装与配置一、简介代理服务器英文全称是Proxy Server，其功能就是代理网络用户去取得网络信息。Squid是一个缓存Internet 数据的软件，其接收用户的 一、简介
代理服务器英文全称是Proxy Server，其功能就是代理网络用...
In JavaScript can I make a “click” event fire programmatically for a file input element?
I'd like to make a click event fire on an <input type="file"> tag programmatically.
28 Answers
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Combine two data frames by rows (rbind) when they have different sets of columns
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rbind.fill from the package plyr might be what you are looking for.
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How to capture no file for fs.readFileSync()?
...ows how to capture an error, however there is no comment for the readFileSync() function regarding error handling. As such, if I try to use readFileSync() when there is no file, I get the error Error: ENOENT, no such file or directory .
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How do I map lists of nested objects with Dapper
I'm currently using Entity Framework for my db access but want to have a look at Dapper. I have classes like this:
7 Answer...
Numpy: find first index of value fast
How can I find the index of the first occurrence of a number in a Numpy array?
Speed is important to me. I am not interested in the following answers because they scan the whole array and don't stop when they find the first occurrence:
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minimum double value in C/C++
Is there a standard and/or portable way to represent the smallest negative value (e.g. to use negative infinity) in a C(++) program?
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How do I achieve the theoretical maximum of 4 FLOPs per cycle?
...al peak performance of 4 floating point operations (double precision) per cycle be achieved on a modern x86-64 Intel CPU?
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What's the 'Ruby way' to iterate over two arrays at once
More of a syntax curiosity than a problem to solve...
7 Answers
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How to filter Pandas dataframe using 'in' and 'not in' like in SQL
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You can use pd.Series.isin.
For "IN" use: something.isin(somewhere)
Or for "NOT IN": ~something.isin(somewhere)
As a worked example:
import pandas as pd
>>> df
country
0 US
1 UK
2 Germany
3 Chi...