python list查询及所需时间
# -*-coding=utf-8 -*-#filename: list_query
#date: 2018-03-25
#author: guosw
import time
def cost_time(fun):
def cost(*args,**kwargs):
stime = time.time()
x = fun(*args,**kwargs)
etime = time.time()
print "function name:",fun.__name__
print "time cost:",etime-stime
return x
return cost
@cost_time
def list_query(_list,_val):
low = 0
> mid = (height - low) // 2
for n in xrange(height+1):
if _list == _val:
return n
for n in xrange(mid,height+1):
if _list == _val:
return n
if __name__ == "__main__":
i = xrange(100000)
subscript = list_query(i,9999)
print subscript
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