koo是一款通过html标签的类名(class)就能验证表单的jquery插件，功能十分强大，功能、性能、方便性远远超越jquery.validate，压缩包里面包括了演示文件-koo is a class name through html tags (class) will be able to verify the jquery form plugin, is very powerful, functional, performance, convenience, far beyond j