本文实例讲述了Python中list查询及所需时间计算操作。分享给大家供大家参考，具体如下：
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
|
# -*-coding=utf-8 -*-#! python2#filename: list_query#date: 2018-03-25#author: guoswimport timedef 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_timedef list_query(_list,_val): low = 0 height = len(i) - 1 mid = (height - low) // 2 for n in xrange(height+1): if _list[n] == _val: return n for n in xrange(mid,height+1): if _list[n] == _val: return nif __name__ == "__main__": i = xrange(100000) subscript = list_query(i,9999) print subscript |
运行结果：
function name: list_query
time cost: 0.00100016593933
9999
希望本文所述对大家Python程序设计有所帮助。
原文链接：https://blog.csdn.net/gswcfl/article/details/79738435
