我有以下代码将数字解释为字符串,并将它们添加为100300而不是400：

var rate = document.getElementById('pur_price').value;
var pprice = document.getElementById('pur_price').value;
var rate1 = document.getElementById('select2').value;
var refurb = 300;
document.getElementById('avg_claim_rate').value=id;
document.getElementById('amount_claim').value=pprice+refurb;

它是pprice和refurb字段,所以如果pprice = 100并且refurb = 300,我预计它会显示400,其中显示100300

解决方法:

var result = +pprice + + refurb;