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string strSqltime = "insert into tblcurrenttime (currenttime,term,modifytime)Values('" +comboBox1.SelectedItem+ "','" +comboBox2.SelectedItem+ "','" +DateTime.Now+ "')";

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string strSqltime = "insert into tblcurrenttime (currenttime,term£¬modifytime)Values('" +comboBox1.SelectedItem+ "','" +comboBox2.SelectedItem+ "','" +DateTime.Now+ "')";


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alter table tblcurrenttime alter column ter


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