enumerate函数用于遍历序列中的元素以及它们的下标i = 0seq = ['one', 'two', 'three']for element in seq: print i, seq[i] i += 1#0 one#1 two#2 threeprint '============'...
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编程语言 时间:
2015-01-16 16:21:59
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151
这篇文章解释了如何使用代码来编写一座3D立体“城市”。这个代码是由@ mrdoob最新发布的演示Demo。我发现这个演示的算法很优雅,是一个简单而有效的解决方案,所以我发了一个帖子解释它。关于算法的一些评论在我们将关注焦点置于问题的细节之前,把握下问题的整体和全局是很有帮助的。这个3D虚拟城市所使用...
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Web程序 时间:
2015-01-16 12:38:29
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5505
12075 - Counting TrianglesTriangles are polygons with three sides and strictly positive area. Lattice triangles are the triangles all whose vertexes h...
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其他好文 时间:
2015-01-15 23:33:17
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159
1、内置对象 数字 1234,3.1415, 3+4j, Decimal, Fraction 字符串 ‘spam', "guido's". 列表 [1, [2, 'three'], 4] 字典 {'food':'spam', 'taste':'yum'} 元组 (1, 's...
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编程语言 时间:
2015-01-15 15:44:18
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193
Given an array of integers, every element appears three times except for one. Find that single one.
Note:
Your algorithm should have a linear runtime complexity. Could you implement it without usi...
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其他好文 时间:
2015-01-15 11:03:15
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157
Posted on Friday, October 11, 2013 .Net has three low-level mechanisms to run code in parallel: Thread, ThreadPool, and Task. These three mechanism se...
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其他好文 时间:
2015-01-13 19:35:59
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154
转自:链接地址: http://dongxicheng.org/framework-on-yarn/apache-spark-comparing-three-deploying-ways/ 目前Apache Spark支持三种分布式部署方式,分别是standalone、spark on mesos和...
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Web程序 时间:
2015-01-13 14:02:09
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169
??
A relationship is a connection among things. In object-oriented
modeling, the three most important relationships are dependencies, generalizations, and associations. Graphically, a relatio...
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其他好文 时间:
2015-01-13 07:55:07
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207
题目描述
Xinlv wrote some sequences on the paper a long time ago, they might be arithmetic or geometric sequences. The numbers are not very clear now, and only the first three numbers of each seq...
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其他好文 时间:
2015-01-13 00:08:33
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258
TCP三次握手Three-way Handshake一个虚拟连接的建立是通过三次握手来实现的1. (B) --> [SYN] --> (A)假如服务器A和客户机B通讯. 当A要和B通信时,B首先向A发一个SYN (Synchronize) 标记的包,告诉A请求建立连接.注意: 一个 SYN包就是仅S...
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其他好文 时间:
2015-01-11 21:32:42
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317