SELECT trim(to_char(), ), ,), '9999,999,990.00')) AS CAvgPrice FROM POSITION a 结果: 以trim(to_char(ROUND(sum(a.AMOUNT),2), '9999,999,990.00')) AS CAmount为例: (1)ROUND(A/B,2),ROUND()函数会将计算结果进行四舍五入.参数:第一个是你的计算表达式,第二个是需要保留的小数位数. 不需要四舍五入直接用表达式,或用TRUNC(A/B,2
js保留两位小数四舍五入: (Math.floor(until_price*100)/100).toFixed(2);//会四舍五入 保留两位小数 且不四舍五入(三种方式,请用最后一种): var num="2.999999999"; num = Number(num); num*=100; num = (Math.floor(num)/100).toFixed(2); alert(num); var a = "2.999999999"; a = a-0; a*
换行的字符串 "This string\nhas two lines" 字符串中使用单引号时应该怎么写 'You\'re right, it can\'t be a quote' 把数字变成字符串并保留两位小数 var n = 123456.789 n.toFixed(0); //"123457" n.toFixed(2); //"123456.79" parseFloat(str)str以非数字开头,则返回NaN parseFloat(str)