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摘要： Designing object-oriented software is hard, and designing resuable object-oriented software is even harder. You must find pertinent objects, factor them into classes at the right granularity, define class interfaces hierarchies, and establish key relationships among them.pertinent:per·ti·n 阅读全文

摘要： IntroductionFile upload form element has been available for ages, for all the frontend developer, the file upload form element can cause headache because it's very hard to reskin, and it only has the most basic feature - file selection. Now, we have AJAX based file uploader which able to provide 阅读全文