round关于四舍五入的问题

Question

curaspreimbursex.documentElement.selectSingleNode("ShouldInvoiceAmount").text　=9651.175round(parseFloat(curaspreimbursex.documentElement.selectSingleNode("ShouldInvoiceAmount").text),2)结果却是9651.17　　和５入的逻辑不对呀
请各位帮忙

Answer 1

curaspreimbursex.documentElement.selectSingleNode("ShouldInvoiceAmount").text　=9651.175 
var a=curaspreimbursex.documentElement.selectSingleNode("ShouldInvoiceAmount").text
var youNeedThisvalue=parseFloat(a).toFixed(2);
alert(youNeedThisvalue)就行了