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Double pointValue = 1.234;//µãÖµ
string sql = "INSERT INTO PointValue(PointName,PointValue,OccurrenceTime) VALUES ('" + pointName + "','" + pointValue.ToString() + ",'" + Convert.ToString(DateTime.Now) + "')";
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string pointName = "NAME1";//µãÃû
Double pointValue = 1.234;//µãÖµ
string sql = "INSERT INTO PointValue(PointName,PointValue,OccurrenceTime) VALUES ('{0}','{1}','{2}')";
sql = string.Format(sql, pointName, pointValue, DateTime.Now.ToString());
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