Python Basics-function adorners, iterators, and generators

1. Function nesting 1.1 function nested call

Nested invocation of a function: in the process of invoking a function, another function is called

def Bar ():     Print (fromthebar. " )def  foo ():    print("from" Thefoo. " )    bar () foo ()

1.2 Finding the maximum value of a function

def max2 (x, y    ): if x > y:        return  x    Else:        return y def max4 (a,b,c,d):     = Max2 (A,    b)= max2 (    res1,c)= max2 (    res2,d)return  = max4 (2,5,3,-4)print(res)

1.3 Function Nesting Definitions

Nested definition of a function: inside a function, another function is defined

def F1 ():     = 1    def  F2 ():        print("fromF2". " )    F2 ()   #  can only be called inside the function F1 ()

Python Basics-function adorners, iterators, and generators