Python Basic Operations _ Method (function)

 #函数, Method 
 #普通方法 
 def hello (): 
 print (' hello ') 
 Hello () 
 #带形参的方法 
 def hello1 (name): 
 Print (' hello%s '%name) 
 Hello1 (' Brad Pitt ') 
 #多个参数的方法 
 def Hello2 (name1,name2): 
 Print (' hello%s and%s '% (name1,name2)) 
 Hello2 (' Brad Pitt ', ' Dirk ') 
 #带默认值参数的方法 
 def hello3 (name1,name2,name3= ' Ferrari '): 
 print (' hello%s%s%s '% (name1, Name2,name3)) 
 Hello3 (' Pete ', ' Dirk ',) 
 #可变参数的方法 
 def Hello4 (*args): 
 Print (args) 
 Hello4 (1,2,3,4) 
 # Keyword parameter, key v accepted in is a dictionary 
 def hello5 (**kwargs): 
 Print (Kwargs) 
 Hello5 (name= ' Qiao ', age=18) 
 a={' name ': ' Q ', ' Age ': ' 
 Hello5 (**a) 
 
 #关键字传值 
 #关键字调用参数不用排序. Because the keyword 
 def hello6 (name,age) is specified: 
 Print (name,age) 
 Hello6 (age=1,name= ' Qiao ') 
 #函数 The return value of the method 
 Def plus (NUM1, NUM2): 
 Return num1,num2,num1+num2# encounters return immediate end, the following code does not go 
 print (plus (10,2)) 
 A=plus (12,3) 
 Print (a[2]) # The return value is a tuple 
 #函数没有返回值时, which returns none 
 #传什么类型, returns what type 
 
 #局部变量, global variable 
 #如果在函数里修改全局变量, need to declare first, declare with global 

Python Basic Operations _ Method (function)