The fourth week - the first 08 chapters -Python3.5- decorator

PCJ # 
# Definition: essentially a function (other decorative function) is to add some additional features for other functions. 
Higher-order functions nested functions # + = decorator 
# principles: 1. modification function can not be decorated. 
# 2, you can not modify the way to call the decorated function. 
Time Import 
DEF bar (): #bar original code is 
    the time.sleep (. 3) 
    Print ( "The bar in") 

DEF Timer (FUNC): 
    DEF Doce (): 
        START_TIME the time.time = () 
        FUNC () 
        stop_time = Time .time () 
        Print ( "Time >> the FUNC RUN:% S:"% (stop_time-START_TIME)) 
    return Doce 

bar = Timer (bar) 
bar () 
# passed to the additional function go bar 
# original function is to bar printing in the bar adds the ability to print a running time now