作业
Topic sourcedef metric(fn): @functools.wraps(fn) def wrapper(*args, **kw): start = time.time() a = fn(*args, **kw) end = time.time() usingtime = end - start print('%s executed in %s ms' % (fn.__name__, using_time)) return a return wrapper
import time,functools
def metric(fn): @functools.wraps(fn) def wrapper(args, **kw): start = time.time() a = fn(args, **kw) end = time.time() using_time = end - start print('%s executed in %s ms' % (fn.name, using_time)) return a return wrapper
@metric
def fast(x,y): return x + y
@metric
def slow(x,y,z): return xyz
f = fast(11, 22) s = slow(11, 22, 33)
print(f, s)
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一块兢兢业业的手表
import time,functools
def metric(fn): @functools.wraps(fn) def wrapper(args, **kw): start = time.time() a = fn(args, **kw) end = time.time() using_time = end - start print('%s executed in %s ms' % (fn.name, using_time)) return a return wrapper
@metric
def fast(x, y): return x + y
@metric
def slow(x, y, z): return x y z
f = fast(11, 22) s = slow(11, 22, 33)
print(f, s)