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在linux下运行apt-get update 时,报错/var/lib/apt/lists/lock
在运行apt-get update 时,报下面的错误:E: 无法获得锁 /var/lib/apt/lists/lock - open (11: Resource temporarily unavailable)E: 无法对目录 /var/lib/apt/lists/ 加锁这个问题是的意思是用于apt...
分类:系统相关   时间:2015-04-19 19:08:12    阅读次数:157
Add Two Numbers
You are given two linked lists representing two non-negative numbers. The digits are stored in reverse order and each of their nodes contain a single ...
分类:其他好文   时间:2015-04-19 17:48:57    阅读次数:127
ArcGIS学习记录—union、merge及append的区别
原文地址: ArcGIS问题:union、merge及append的主要区别[转] - Silent Dawn的日志 - 网易博客 http://gisman.blog.163.com/blog/static/3449338820094279425963/ arctoolbox中将两个要素类合并成一...
分类:移动开发   时间:2015-04-19 13:07:30    阅读次数:212
php导出csv
1.导出有很多种,他有自带包的导出,但是如果你要导出7,8千的数据的话就有点困难,我最近发现一个导出可以到出1万的数据,好像只能导出csv格式的。public function down_load($lists){ set_time_limit(0); ini_set('memory_l...
分类:Web程序   时间:2015-04-18 10:02:54    阅读次数:115
归并排序
(java版)public class mergingSort { public static void merge(int[] a,int left, int center, int right){ int[] tmpArr = new int[a.length]; int mid = ce...
分类:编程语言   时间:2015-04-17 23:34:32    阅读次数:176
hibernate的各种保存方式的区别 (save,persist,update,saveOrUpdte,merge,flush,lock)等
hibernate的保存hibernate对于对象的保存提供了太多的方法,他们之间有很多不同,这里细说一下,以便区别:一、预备知识:在所有之前,说明一下,对于hibernate,它的对象有三种状态,transient、persistent、detached下边是常见的翻译办法:transient:瞬...
分类:Web程序   时间:2015-04-17 22:13:24    阅读次数:164
R语言合并data.frame
Merging DataAdding ColumnsTo merge two data frames (datasets) horizontally, use the merge function. In most cases, you join two data frames by one or ...
分类:编程语言   时间:2015-04-17 22:05:43    阅读次数:239
Merge Two Sorted Lists *****
Merge two sorted linked lists and return it as a new list. The new list should be made by splicing together the nodes of the first two lists.***Note**...
分类:其他好文   时间:2015-04-17 17:41:25    阅读次数:94
23. Merge k Sorted Lists
题目:Mergeksorted linked lists and return it as one sorted list. Analyze and describe its complexity.链接:http://leetcode.com/problems/merge-k-sorted-list...
分类:其他好文   时间:2015-04-17 15:34:07    阅读次数:122
LeetCode-Add Two Numbers
You are given two linked lists representing two non-negative numbers. The digits are stored in reverse order and each of their nodes contain a single ...
分类:其他好文   时间:2015-04-17 07:06:41    阅读次数:136
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