This book provides a systematic and comprehensive introduction to ASP by developing a complete and practical Web site development example. NET Web site development technology. The book is divided into 12 chapters, and the content of each chapter is introduced in the order of raising problems, designing plans and solutions. First put forward the problems that need to be solved, then explain the implementation process, and finally in ASP. NET to write specific software code. Each chapter is independent and introduces the development process of an extensible and exchangeable module. Most chapters involve creating a three-tier system, including the data layer, business layer, and presentation layer. The book also recommends a basic website construction framework, which readers can use to easily and quickly create some modules and insert them into Web sites. This book is intended for readers: ·Use ASP. NET and Visual Basic. NET developers ·Use Visual Studio. NET Professional or above. ·Use Visual Basic. NET Standard version developers