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App Inventor 2 扩展 · App Inventor 2 中文网
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App Inventor 2 扩展
Initial Release 1.0 (Introduced as part of MIT App Inventor Release nb149)
DRAFT: September 27, 2015
Updated: June 9, 2017
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							Efficient way to rotate a list in python
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							How to create a density plot in matplotlib?
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Sven has shown how to use the class gaussian_kde from Scipy, but you will notice that it doesn'...				
				
				
							Matplotlib: “Unknown projection '3d'” error
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        edited Apr 4 '19 at 18:23
    
    
        
    
    
        Matthew Salvatore Viglione
        
            4,14911 gold badge1010 silver badges3333 bronze badges
        
    
            
            
                
    
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							Are the shift operators () arithmetic or logical in C?
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According to K&R 2nd edition the results are implementation-dependent for right shifts of signed values.
Wikipedia says that C/C++ 'usually' implements an arithmetic shift on signed values.
Basically you need to either test your compiler or...				
				
				
							Testing two JSON objects for equality ignoring child order in Java
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							Why does Lua have no “continue” statement?
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In Lua 5.2 the best workaround is to use goto:
-- prints odd numbers in [|1,10|]
for i=1,10 do
  if i % 2 == 0 then goto continue end
  print(i)
  ::continue::
end
This is supported in LuaJIT since version 2.0.1
    
    
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							NUnit isn't running Visual Studio 2010 code
					I'm trying to load a Visual Studio 2010 beta dll into the NUnit GUI.  I get a popup error.
                    
                    
                        
                            
                                
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							Windows equivalent of the 'tail' command
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