gem 'ransack' *_eq - 等于 *_not_eq - 不等于 *_matches - matches with LIKE, e.g. q[email_matches]=%@gmail.com Also: *_does_not_match, *_matches_any, *_match ...
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其他好文 时间:
2018-05-31 19:09:03
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374
keepalived常见的启动报错: 5913 May 16 15:26:04 localhost Keepalived_vrrp: ip address associated with VRID not present in received packet : 192.168.57.75 5914 ...
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其他好文 时间:
2018-05-31 14:38:25
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174
You are given a license key represented as a string S which consists only alphanumeric character and dashes. The string is separated into N+1 groups b ...
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其他好文 时间:
2018-05-31 00:30:05
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139
题目描述 AtCoDeer the deer and his friend TopCoDeer is playing a game. The game consists of N turns. In each turn, each player plays one of the two gestur ...
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其他好文 时间:
2018-05-29 00:18:38
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195
【History & Significance of Specification Language】 In the last 40 years, a large number of sepcification language have been proposed for the software ...
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其他好文 时间:
2018-05-28 14:57:08
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172
55. Jump Game Given an array of non-negative integers, you are initially positioned at the first index of the array. Each element in the array represe ...
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其他好文 时间:
2018-05-28 01:04:36
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1、警告: Unknown version string [3.1]. Default version will be used. 因为Tomcat版本为7,支持3.1版本的为Tomcat 8; 2、Required Integer parameter 'id' is not present 在co ...
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其他好文 时间:
2018-05-26 10:53:06
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256
1. 强制等待 第一种也是最简单粗暴的一种办法就是强制等待sleep(xx),强制让闪电侠等xx时间,不管凹凸曼能不能跟上速度,还是已经提前到了,都必须等xx时间。 看代码: ? 1 2 3 4 5 6 7 8 9 10 11 # -*- coding: utf-8 -*- from seleniu ...
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编程语言 时间:
2018-05-24 15:11:42
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258
问题 C: Cities 题目描述 There are n cities in Byteland, and the ith city has a value ai. The cost of building a bidirectional road between two cities is the ...
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其他好文 时间:
2018-05-24 01:11:01
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233
原文:WPF属性(二)附加属性 附加属性是说一个属性本来不属于某个对象,但由于某种需求而被后来附加上,也就是把对象放入一个特定环境后对象才具有的属性就称为附加属性,附加属性的作用就是将属性与数据类型解耦,让数据类型的设计更加灵活,举例,一个TextBox被放在不同的布局容器中时就会有不同的布局属性.... ...