function return value

# -*- coding: utf-8 -*- 
def test1(): 
    print( "test1 return value ") 

def test2(): 
 print( "test2 return value ") 
 return 0 

def test3(): 
 print( "test3 return value ") 
 return 1,[ "a", "b", "c"],{ "name": " He Xiaoliu "} 

x=test1() 
y=test2() 
z=test3() 


print(y) 
print(z) 

#Summary : 
#Number of return values =0 , return None #Number 
of return values =1 , return object (the object itself) 
# return value>1 , returns a tuple (tuple)