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How do I create a list of random numbers without duplicates?
I tried using random.randint(0, 100) , but some numbers were the same. Is there a method/module to create a list unique random numbers?
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CSS background opacity with rgba not working in IE 8
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Daniel Mendel
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answered Oct 20 '10 at 7:44
MatTheCatMatTheCat
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C++ equivalent of java's instanceof
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202
Try using:
if(NewType* v = dynamic_cast<NewType*>(old)) {
// old was safely casted to...
Appropriate datatype for holding percent values?
What is the best datatype for holding percent values ranging from 0.00% to 100.00%?
5 Answers
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How do you get the width and height of a multi-dimensional array?
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answered Nov 23 '10 at 19:52
Reed CopseyReed Copsey
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Getting the first character of a string with $str[0]
I want to get the first letter of a string and I've noticed that $str[0] works great. I am just not sure whether this is 'good practice', as that notation is generally used with arrays. This feature doesn't seem to be very well documented so I'm turning to you guys to tell me if it's all right –...
Does opacity:0 have exactly the same effect as visibility:hidden
... in the taborder
collapse events taborder
opacity: 0 No Yes Yes
visibility: hidden No No No
visibility: collapse Yes* No No
display: none Yes No No
* Yes inside a table element, otherwise No.
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Using .NET, how can you find the mime type of a file based on the file signature not the extension
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answered Sep 12 '08 at 9:44
Steve MorganSteve Morgan
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Comparing numbers in Bash
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answered Sep 7 '13 at 0:48
jordanmjordanm
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CentOS+Nginx+PHP+MySQL详细配置(图解) - PHP - 清泛IT论坛，有思想、有深度
本帖最后由 zqp2013 于 2015-4-26 14:29 编辑
一、安装MySQL
目前web服务器已经很少有跑静态页面的，如果要跑动态网站那当然就离不开数据库，虽然在以前文章中有写MySQL是怎么安装的，但是感觉好久没...