000-- Define a function which meets below criteria:
a- if the last parameter != 5, then get the sum of all the parameters and multiple base=3
b- if the last parameter ==5, then the base = 5 and mutiple the left parameter's sum.
running result:
001-- define a function, to look for the data meet : abc = a^3+b^3+c^3
running result：
002--define a function to search how many times a sub String show in a target String
running result:
003-- functions decument
def MyFirstFunction(name):
'函数文档在函数定义的最开头部分，用不记名字符串表示'
print('I love python.com!')
To access the clarification of the functions:
>>> MyFirstFunction.__doc__
oder:
help(MyFirstFunction)
005--key parameter
006-- default parameter
