如何使用javascript添加表单值?

jac*_*on5 4 javascript forms

这是我提出的代码,但它所做的只是1 + 1 = 11我需要它做1 + 1 = 2.

<head>
<script type="text/javascript">
function startCalc(){
  interval = setInterval("calc()",1);
}
function calc(){
  one = document.form1.quantity.value;
  two = document.form1.price.value;
  c = one + two 
  document.form1.total.value = (c);
}
function stopCalc(){
  clearInterval(interval);
}
</script>


</head>
<body>
<form name="form1">
Quantity: <input name="quantity" id="quantity" size="10">Price: <input name="price" id="price" size="10"><br>
Total: <input name="total" size="10" readonly=true><br>
<input onclick="startCalc();" onmouseout="stopCalc()" type="button" value="Submit">
</form>

</body>
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当然这是一个非常简单的形式,但你明白了,请帮我告诉我这里做错了什么

Pau*_*ber 6

您需要使用parseInt()将字符串转换为整数.

c = parseInt(one, 10) + parseInt(two, 10)
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