Python Learning (v)--functions

One, function 1. Defining claims

def function name (parameter):

function body

return value

Note: The function must complete the definition declaration before calling

2. Parameters

1) General parameters

def Test (a):        # here parameter A is the normal parameter    print(a)

2) Specify parameters

def Test (a):     Print (a) test (a=5)        # here A is the specified parameter

3) Default parameters

def Test (A, b=3):        #A is a normal parameter, B is the default parameter    print(A +b) Test (5)                        #  output is 8test (5, 5)                    #  output is ten　　　

4) Dynamic Parameters

 def  Test (*args): #   Args is the dynamic parameter  print  (typeof (args)) #                      tuple  print  (args) #   (one, one, one)  test ( one, $) 

def Test (**kwargs):        #  kwargs for dynamic parameter    print(Type (Kwargs))    # Dict     Print(Kwargs)          # {' A ': 3, ' B ': 4, ' C ': 5}Test (a=3, b=4, c=5)

　　　　

Python Learning (v)--functions