Python anonymous functions

Source: Internet
Author: User

First, anonymous function

An anonymous function is one that does not require explicit specified function names , and the most complex operation supported by anonymous functions is the ternary operation.

anonymous function functions:
1. Save Code Volume
2, looks more advanced

# Example One: def Calc (x, y    ): return x*y#  overwrites the above general function as an anonymous function:lambda x,y:x*Lambda X,y:x*y    #  declares an anonymous function and assigns a value to the Funcprint(func (3,8))       #  output of 24 
#Example Two:#To overwrite a complex function with an anonymous functiondefCalc (x, y):ifX <y:returnx*yElse:        returnx/yPrint(Calc (16,8))#converting the above function into an anonymous function, the most complex operation supported by an anonymous function is the ternary operation. func1=LambdaX,y:x*yifX < yElseX/Y#anonymous function converted to ternary operation formPrint(Func1 (16,8))
Second, anonymous function application
data = List (range (10))Print(data)#method One: forIndex,iinchEnumerate (data): Data[index]= i*IPrint(data)#Method Two:defF2 (n):returnNNPrint(List (map (F2,data )))#Method Three:Print(List (Map (LambdaX:x*x,data)))#map functions and anonymous functions are used once, so no need to define functions

Python anonymous functions

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