如何将剩余金额与停留天数相乘?如何在java脚本中做到这一点?
例如
function getObj(objID){
var val=document.getElementById(objID);
if (val=="") { return 0;} else { return val; }
function D(){
var cash =document.getElementById('cash').value;
var total =document.getElementById('total').value;
var prepaid = document.getElementById('prepaid').value;
var remain = document.getElementById('remain').value;
document.getElementById('prepaid').value= parseFloat(getObj('cash').value);
document.getElementById('remain').value = (parseFloat(getObj('prepaid').value))-(parseFloat(getObj('total').value));
}
`