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无社交不商业,Uber将边缘化BAT - 资讯 - 清泛网 - 专注C/C++及内核技术

...网公司的。 基于“无社交不商业”的预言,其他行业怎么去颠覆创新? 我可以给出一些建议: 比如说餐饮行业,我们应该解决的问题不再是吃饭问题,而是和谁一起吃饭的问题;比如说酒店行业,我们应该解决的问题不再...
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一文了解大数据领域创业的机会与方向 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术

...、原理是什么、架构是什么,用户最关心的是大数据到底怎么用,用了能为自己带来什么好处。 今天我们将从“外部大环境”、“行业内部环境”、“创业风险”和“大数据创业机会和方向”四个点来阐述主题,聪明的朋友也...
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How Do I Use Factory Girl To Generate A Paperclip Attachment?

...tory: factory :attachment do supporting_documentation_file_name { 'test.pdf' } supporting_documentation_content_type { 'application/pdf' } supporting_documentation_file_size { 1024 } # ... end share | ...
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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

...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,但是感觉好久没装MySQL,现在只把步骤贴出来,就不做过多的讲解了 #useradd mysql #tar zxvf mysql-5.0.40.tar.gz #cd mysql-5.0.40 #./configure --prefix=/usr/local/mysql #make &&...
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User recognition without cookies or local storage

...hese) Web Bugs (less reliable because bugs get fixed, but still useful) PDF Bug Flash Bug Java Bug Browsers Click Tracking (many users visit the same series of pages on each visit) Browsers Finger Print   - Installed Plugins (people often have varied, somewhat unique sets of plugins) Cached ...
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总结const_cast、static_cast、dynamic_cast、reinterpret_cast - C/C++ - ...

...能将非32bit的实例转成指针。总之,只要是32bit的东东,怎么转都行! static_cast和dynamic_cast可以执行指针到指针的转换,或实例本身到实例本身的转换,但不能在实例和指针之间转换。static_cast只能提供编译时的类型安全,而dyna...
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Create two blank lines in Markdown

...on-white-space. The benefit is that in Markdown flavours that include both PDF and HTML output options (including Rmarkdown), it should be understood in the same way for both output types, whereas I'm not sure how PDF output would interpret <br> or   ...
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Reading and writing binary file

...using namespace std; int main() { ifstream infile; infile.open("source.pdf",ios::binary|ios::in); ofstream outfile; outfile.open("temppdf.pdf",ios::binary|ios::out); int buffer[2]; while(infile.read((char *)&buffer,sizeof(buffer))) { outfile.write((char *)&buffer,sizeof...
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Creating a ZIP Archive in Memory Using System.IO.Compression

...MVC public ActionResult Index() { string fileName = "test.pdf"; string fileName1 = "test.vsix"; string fileNameZip = "Export_" + DateTime.Now.ToString("yyyyMMddhhmmss") + ".zip"; byte[] fileBytes = System.IO.File.ReadAllBytes(@"C:\test\test.pdf"); by...
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Algorithm to implement a word cloud like Wordle

... More information here: static.mrfeinberg.com/bv_ch03.pdf - Thanks Jonathan. – Reto Aebersold Mar 5 '11 at 15:28 ...