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MFC学习总结 (90个技巧) dlg 上建立View - C/C++ - 清泛网 - 专注C++内核技术

MFC学习总结 (90个技巧) dlg 上建立View1.属性页的添加:创建对话框的类,该类要从CpropertyPage继承;然后在要添加该对话框为 属性页的类(头文件)里创建CpropertySheet类的一 [page]属性页的添加[/page]1.属性页的添加: 创建对话框...
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Sleep until a specific time/date

...bash, do the following: current_epoch=$(date +%s) target_epoch=$(date -d '01/01/2010 12:00' +%s) sleep_seconds=$(( $target_epoch - $current_epoch )) sleep $sleep_seconds To add precision down to nanoseconds (effectively more around milliseconds) use e.g. this syntax: current_epoch=$(date +%s.%...
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Output data from all columns in a dataframe in pandas [duplicate]

... 280 Use: pandas.set_option('display.max_columns', 7) This will force Pandas to display the 7 colu...
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How to insert element into arrays at specific position?

...on array operator (+) can recombine the parts. $res = array_slice($array, 0, 3, true) + array("my_key" => "my_value") + array_slice($array, 3, count($array)-3, true); This example: $array = array( 'zero' => '0', 'one' => '1', 'two' => '2', 'three' => '3', ); $...
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Reverse Range in Swift

...:to:by:) is similar but excludes the last value for i in stride(from:5,to:0,by:-1) { print(i) } // 5 4 3 2 1 Update For latest Swift 2 First of all, protocol extensions change how reverse is used: for i in (1...5).reverse() { print(i) } // 5 4 3 2 1 Stride has been reworked in Xcode 7 Beta 6. ...
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How to calculate the number of occurrence of a given character in each row of a column of strings?

... 2 #2 2 magic 1 #3 3 not 0 share | improve this answer | follow | ...
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Calculating Pearson correlation and significance in Python

... 201 You can have a look at scipy.stats: from pydoc import help from scipy.stats.stats import pears...
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Site stopped working in asp.net System.Web.WebPages.Razor.Configuration.HostSection cannot be cast t

... 200 In the root Web.config make sure assemblyBinding contains the proper version for the assembly "...
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What is in your Mathematica tool bag? [closed]

... processing. As an example of its utility, I've been working with Wannier90 which outputs the spatially dependent Hamiltonian into a file where each line is a different element in the matrix, as follows rx ry rz i j Re[Hij] Im[Hij] To turn that list into a set of matrices, I gathered up all subl...
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Understanding “randomness”

...ough a pseudo-random variable: BarChart[BinCounts[RandomReal[{0, 1}, 50000], 0.01]] While this is the distribution you get after multiplying two random variables: BarChart[BinCounts[Table[RandomReal[{0, 1}, 50000] * RandomReal[{0, 1}, 500...