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浅谈HTML5 & CSS3的新交互特性 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...L5 中的内容标签互相独立，级别不同，搜索引擎以及统计软件等均可快速识别各部分内容。
2. 更好的表格体系
现在，你可以抛弃JavaScript或者是PHP，只通过HTML5来定义表格。你可以定义每个表格单元的输入格式，也可以定义这...
What causes java.lang.IncompatibleClassChangeError?
...voke methods from it. These errors seem to appear at random. What kinds of problems could be causing this error?
18 Answers...
Fit background image to div
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You can achieve this with the background-size property, which is now supported by most browsers.
To scale the background image to fit inside the div:
background-size: contain;
To scale the background image to cover the whole div:
background-size: cover;
JSFiddle e...
PHP大潮将至 PHP近年发展分析 - 创意 - 清泛网 - 专注C/C++及内核技术
...定的特点。
曾经听一个网站的技术经理说过：“如果做软件，如果要做网站就用PHP!”。当时我们都以为这个是一个笑谈，现在想起来还真是这样。目前，许多的网站项目的负责人都很信任PHP。觉得PHP在支持Web方面非常到位。
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How does a PreparedStatement avoid or prevent SQL injection?
I know that PreparedStatements avoid/prevent SQL Injection. How does it do that? Will the final form query that is constructed using PreparedStatements will be a string or otherwise?
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How can I define a composite primary key in SQL?
How can I define a composite primary key consisting of two fields in SQL?
3 Answers
3
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Remove IE10's “clear field” X button on certain inputs?
...bout IE9, though), but definitely NOT Win8 only, since this appears in the Win7 version of IE10. Anyway, thanks for the tip, @minitech!
– OMA
Sep 17 '13 at 11:13
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How can I get the SQL of a PreparedStatement?
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Using prepared statements, there is no "SQL query" :
You have a statement, containing placeholders
it is sent to the DB server
and prepared there
which means the SQL statement is "analysed", parsed, some data-structure represen...
Heatmap in matplotlib with pcolor?
...4
# Author : @LotzJoe >> Joe Lotz
# Description: My attempt at reproducing the FlowingData graphic in Python
# Source : http://flowingdata.com/2010/01/21/how-to-make-a-heatmap-a-quick-and-easy-solution/
#
# Other Links:
# http://stackoverflow.com/questions/14391959/heatmap-in-matpl...
rbenv not changing ruby version
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$ env | grep PATH
Also check that you have the following in your ~/.bash_profile if using bash or ~/.zshenv if using zsh
export PATH="$HOME/.rbenv/bin:$PATH"
eval "$(rbenv init -)"
NOTE:
Make sure it's the last setting in your ~/.bash_profile . I ran into an issue where I installed a program that...