sqlhelper;

using sqlhelper = Microsoft.ApplicationBlocks.Data.SqlHelper;

using sqlhelper = Microsoft.ApplicationBlocks.Data.SqlHelper;

using sqlhelper = Microsoft.ApplicationBlocks.Data.SqlHelper;

using sqlhelper = Microsoft.ApplicationBlocks.Data.SqlHelper;

using sqlhelper = Microsoft.ApplicationBlocks.Data.SqlHelper;

using sqlhelper = Microsoft.ApplicationBlocks.Data.SqlHelper;

1 using sqlhelper = Microsoft.ApplicationBlocks.Data.SqlHelper;
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原文地址：https://www.cnblogs.com/kejie/p/7235624.html