一、通配符
通配符描述示例
%:匹配包含零个或更多字符的任意字符串。WHERE title LIKE '%computer%' 将查找处于书名任意位置的包含单词 computer 的所有书名。
_(下划线):匹配任何单个字符。WHERE au_fname LIKE '_ean' 将查找以 ean 结尾的所有 4 个字母的名字(Dean、Sean 等)。...
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数据库 时间:
2016-04-16 19:32:53
阅读次数:
291
win下jdk7环境变量的配置: 单击计算机(Computer),选择属性(Properties),选择高级系统设置(Advanced systems settings), 选择环境变量(Environment Variables). 新建3个环境变量(PATH,CLASSPATH,JAVA_HOM ...
Problem Description The famous ACM (Advanced Computer Maker) Company has rented a floor of a building whose shape is in the following figure.The floor ...
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其他好文 时间:
2016-04-15 20:15:48
阅读次数:
177
考完期末干下面几件事,应该还是能做完的,搞定了就放一些笔记或者摘要上来 读书: The art of 3-D : computer animation and imaging / Isaac Victor Kerlow Disney大牛,粗略翻了一下感觉比较科普向,应该压力不大 The elemen ...
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其他好文 时间:
2016-04-15 13:50:43
阅读次数:
85
Nearest Common Ancestors Description A rooted tree is a well-known data structure in computer science and engineering. An example is shown below: In t ...
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其他好文 时间:
2016-04-14 01:07:51
阅读次数:
161
Description Problems in Computer Science are often classified as belonging to a certain class of problems (e.g., NP, Unsolvable, Recursive). In this p ...
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其他好文 时间:
2016-04-13 00:04:06
阅读次数:
126
Problem Description Nowadays, we all know that Computer College is the biggest department in HDU. But, maybe you don't know that Computer College had ...
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编程语言 时间:
2016-04-12 20:58:07
阅读次数:
159
NATO会议上首次提出了“软件工程”这个名词,希望用工程化的原则和方法来克服软件危机。此后,人们开展了软件开发模型、开发方法、工具与环境的研究,提出了瀑布模型、演化模型、螺旋模型和喷泉模型等开发模型,出现了面向数据流方法、面向数据结构方法、面向对象等开发方法,以及一批CASE(Computer Ai ...
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其他好文 时间:
2016-04-11 23:53:05
阅读次数:
201
题目链接: Computer Time Limit: 1000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Problem Description A school bought the first computer ...
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其他好文 时间:
2016-04-11 22:26:19
阅读次数:
217
The picture above is funny. But for me it is also one of those examples that make me sad about the outlook for AI and for Computer Vision. What would ...
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其他好文 时间:
2016-04-11 14:00:00
阅读次数:
186