Next, create the four BLL class files in the BLL subfolder.
然后，在BLL文件夹中创建4个类文件。
Is it reasonable to wrap a domain's BLL into it's own Class Library, and how would I set it up?
它是合理的包装领域的都为它自己的类库，和我怎么设置？
Is it reasonable to wrap a domain's BLL into it's own Class Library, and how would I set it up?
它是合理的包装领域的都为它自己的类库，和我怎么设置？
应用推荐