A - formation of decorators, without modifying the basis of the original function newly added function (Advanced closures) - Open Closed Principle
Execution order
Original function (function to be decorated): def func () function decorator def timmer (f): new features, print (end - start)
- syntactic sugar @
On one line of the original function plus decorative function name = @ decorative function call assignment func = timmer (func)
- Get the original function's return value
- decorative tape decorative function parameters 1, tacked (with reference wrapper)
