四舍五入,精確一位小數(沒分了,以后補)A 為:Decimal(18,6) 59.1499569 = 59.1 25.34999394 =25.3 49.49997474 =49.5 [解决办法]select str( '59.1499569 ',4,1) select str( '25.34999394 ',4,1) select str( '49.49997474 ',4,1)