[Timlinux] Python functions

1. The difference between function and method

Methods: Blocks of code declared in a class structure by DEF statements are called methods, such as class methods (Classmethod), instance methods, static methods (Staticmethod), and so on.

Functions: Blocks of code declared by DEF statements in other scenarios are called functions, such as built-in functions, global functions, and so on.

2. Definition of function 2.1. anonymous functions

Func_name1 = Lambda arg1, arg2:arg1 + arg2
Print (FUNC_NAME1)

2.2. No parameter function

Def func_name2 ():

Print ("in Func_name2")

2.3. Positional parameter functions

def func_name3 (Arg1, arg2):

x = arg1 + arg2

Print (arg1, "+", arg2, "=", x)

2.4. Variable-length parametric functions

def func_name4 (*args):

For Arg in args:

Print (ARG)

Func_name4 (output:1) #, 2, 3

Func_name4 (*[4,5,6]) # Output:4, 5, 6

Func_name4 (* (7,8,9)) # Output:7, 8, 9

A = [A]
Func_name4 (a) # output: [[+]--
Func_name4 (*a) # output:1--, 2--, 3--

2.5. Keyword parameter function

def func_name5 (name, age):

Print (name, age)

Func_name5 (' Tim ', 22)

Func_name5 (' Tim ', age=22)

Func_name5 (name= ' Tim ', age=100)

2.6. Variable-length keyword parameter function

def func_name6 (**kwargs):

For K in Kwargs:

Print (k, kwargs[k])

Func_name6 (name= ' Tim ', age=100)

Func_name6 (name= ' Tim ', age=100, sex= "Male")

3. Function closure

<T.B.D.>

[Timlinux] Python functions