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Single Number II
Given an array of integers, every element appearsthreetimes except for one. Find that single one.Note:Your algorithm should have a linear runtime comp...
分类:其他好文   时间:2014-12-03 14:00:31    阅读次数:185
[leetcode] Single Number II
Given an array of integers, every element appearsthreetimes except for one. Find that single one.Note:Your algorithm should have a linear runtime comp...
分类:其他好文   时间:2014-12-01 12:50:34    阅读次数:155
Single Number II
Single Number IIGiven an array of integers, every element appearsthreetimes except for one. Find that single one.Note:Your algorithm should have a lin...
分类:其他好文   时间:2014-11-25 16:19:11    阅读次数:142
Leetcode Single Number II
Given an array of integers, every element appearsthreetimes except for one. Find that single one.Note:Your algorithm should have a linear runtime comp...
分类:其他好文   时间:2014-11-25 14:14:58    阅读次数:149
09、异常处理和程序调试
1、异常的处理:常见异常有除零、下标越界等。 2、try:处理异常,有缩进结构,有可选的else语句块。形式如下: . 图1:捕捉所有异常 图2:捕捉指定异常 图3:不管是否有异常,finally语句也会被执行 . 3、except语句有以下几种用法: 4、raise:手动引发异常。有一下几种使用方...
分类:其他好文   时间:2014-11-24 19:04:00    阅读次数:189
【LeetCode】Single Number II (3 solutions)
Single Number IIGiven an array of integers, every element appearsthreetimes except for one. Find that single one.Note:Your algorithm should have a lin...
分类:其他好文   时间:2014-11-20 18:29:54    阅读次数:271
python守护进程
假如写一段服务端程序,如果ctrl+c退出或者关闭终端,那么服务端程序就会退出,于是就想着让这个程序成为守护进程,像httpd一样,一直在后端运行,不会受终端影响。守护进程英文为daemon,像httpd,mysqld,最后一个字母d其实就是表示daemon的意思。守护进程的编写步骤:fork子..
分类:编程语言   时间:2014-11-19 18:57:01    阅读次数:152
Spark安装过程
1. expect安装Expect是基于Tcl语言的一种脚本语言,其实无论是交互还是非交互的应用场合,Expect都可以大显身手,但是对于交互式的特定场合,还非Except莫属。第1步:使用root用户登录 第2步:下载安装文件expect-5.43.0.tar.gz 和 tcl8.4.11-src...
分类:其他好文   时间:2014-11-19 12:34:07    阅读次数:290
Single Number II
Given an array of integers, every element appearsthreetimes except for one. Find that single one.Note:Your algorithm should have a linear runtime comp...
分类:其他好文   时间:2014-11-18 23:22:33    阅读次数:206
python批量下载色影无忌和蜂鸟的图片 爬虫小应用
# -*- coding:utf-8 -*- import re,urllib,sys,os,time def getAllUrl(): entry=sys.argv[1] #try: getPage=urllib.urlopen(entry).read() #except: # print "Error" pattern=re.compile(r'') web_site_p...
分类:编程语言   时间:2014-11-17 17:55:13    阅读次数:304
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