System.Data.SqlClient.SqlParameterCollection.Add(string, object)”已过时
警告1“System.Data.SqlClient.SqlParameterCollection.Add(string, object)”已过时:“Add(String parameterName, Object value) has been deprecated. Use AddWithValue(String parameterName, Object value). http://go.microsoft.com/fwlink/?linkid=14202”E:\n\3CMarketY\Mkt3C_Class\MainClass.cs2644Mkt3C_Class


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[解决办法]
Use AddWithValue(String parameterName, Object value).

人家都说了啊！

System.Data.SqlClient.SqlParameterCollection. AddWithValue(string, object)