使用TWAIN读取扫描仪的图像。In Windows imaging applications, the most used API for scanning is TWAIN www.twain.org. Unfortunately, the new .NET Framework has no built-in support for TWAIN. So we have to work with the interop methods of .NET to access this API. T

json接口编写命名规范，获取表中数据，转化为前台chart的数据源，响应界面的ajax请求(The JSON interface writes the naming specification, gets the data in the table, transforms it into the data source of the front desk chart, and responds to the Ajax request of the interface)

csharp-vb-net-scan-twain-wia-scanner 扫描仪的开发(csharp-vb-net-scan-twain-wia-scanner)