ROUND(((issueLoan/`month`)-issueLoan*(rate/12))*(tenderMoney/issueLoan)+
(issueLoan*(rate/12))*(tenderMoney/issueLoan),20)
= 4.16666666666666650000
,ROUND(((issueLoan/`month`)-(issueLoan*(rate/12))*(tenderMoney/issueLoan))*(tenderMoney/issueLoan),20),
=4.16597222249999983339
(issueLoan*(rate/12))*(tenderMoney/issueLoan)
=0.04166664999999999833
第二个+第三个 = 第一个 但是为什么结果不正确呢 ,求大神~~~~
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第1个回答 2014-08-13
DOUBLE型除以整形得出的是整型,会导致精度丢失。你试试rate/12 改成rate/12.00 试试