Python full stack day14 (function)

Math-Defined Functions

The definition of a function: given a set of numbers a, a corresponding rule F is applied to a, recorded as F (a), to obtain another set of B, that is, b=f (a). Then the relation is called the function relation, short function. The concept of a function contains three elements: define domain A, range C, and corresponding law F. The core is the corresponding law F, which is the essential feature of the function relationship.

Python-defined functions

def test (x):    # "comment"    x + = 1    return X#def: Defines the function's keyword #test function name # (within definable parameters) #注释 (not necessarily but strongly recommended to add descriptive information) #x + = 1 processing Logic # return definition returns value # Call run can take parameters or without parameters

　　

Python full stack day14 (function)