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Difference between toFixed() and toPrecision()?
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edited Apr 27 '11 at 16:19
answered Jul 26 '10 at 18:40
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Awk学习笔记 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...x下的一个强大编程工具。
目录：
1. awk简介
2. awk命令格式和选项
2.1. awk的语法有两种形式
2.2. 命令选项
3. 模式和操作
3.1. 模式
3.2. 操作
4. awk的环境变量
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What are the main disadvantages of Java Server Faces 2.0?
Yesterday I saw a presentation on Java Server Faces 2.0 which looked truly impressive, even though I am currently a happy ASP.NET MVC / jQuery developer. What I liked most about JSF was the huge amount of AJAX-Enabled UI components which seem to make development much faster than with ASP.NET MVC, es...
Re-ordering columns in pandas dataframe based on column name [duplicate]
I have a dataframe with over 200 columns. The issue is as they were generated the order is
11 Answers
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In-memory size of a Python structure
Is there a reference for the memory size of Python data stucture on 32- and 64-bit platforms?
7 Answers
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Check if at least two out of three booleans are true
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Getting SyntaxError for print with keyword argument end=' '
...re you sure you are using Python 3.x? The syntax isn't available in Python 2.x because print is still a statement.
print("foo" % bar, end=" ")
in Python 2.x is identical to
print ("foo" % bar, end=" ")
or
print "foo" % bar, end=" "
i.e. as a call to print with a tuple as argument.
That's o...
How to print last two columns using awk
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awk '{print $(NF-1),"\t",$NF}' file
this assumes that you have at least 2 fields.
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.NET 4.0 has a new GAC, why?
...s the new GAC . Does it mean now we have to manage two GACs, one for .NET 2.0-3.5 applications and the other for .NET 4.0 applications?
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Python data structure sort list alphabetically
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[] denotes a list, () denotes a tuple and {} denotes a dictionary. You should take a look at t...