摘要： If you're storing them as strings rather than bit patterns: IPv4 addresses consist of four 3-digit decimal characters with three . separators, so that 阅读全文

摘要： 1. 方式一 导入row，新表架构与原表相同，foreach前clone， newDataTable=oldDataTable.Clone(); 2. 方式二 CopyToDataTable 3. Add 4. DataView 5. Merge 6. 7. Linq 阅读全文