Python Basic Tutorial Notes--6th: Abstraction (function)

(1) Calculate the Fibonacci sequence:

1 fbis=[0,1]2 num=int (Input ("pleaseinputthe number")  3 for in range (Num-2):4     fbis.append (fbis[-2]+fbis[-1 ])5print(fbis)      

6.3 Creating a function

Callable (): function can determine whether a function can be called

The simplest example:

1 def Hello (name): 2     return " Hello "+name+"is youOK? "

Number of inputs, function of output Fibonacci sequence

1 deffbis (num):2     ifnum<=0:3         return "Input Error"4     ifNum==1:5         return[0]6     ifnum==2:7         return[0,1]8f=[0,1]9      forIinchRange (num-2):TenF.append (f[-1]+f[-2]) One     returnF

Record function: Write a description of the document and view the function's documentation

1 defHello (name):2     'This is a print function'#function Description Document as String3     Print("Hello"+name)4 5 #View function Documents7>>> Hello.__doc__8 'This is a print function'

6.4 Function parameters

The parameters of the function are the same as the c,c++ values are passed

Python Basic Tutorial Notes--6th: Abstraction (function)