第1个回答 2018-07-11
<meta http-equiv="Content-Type" content="text/html;charset=utf-8"/>
<input type="text" name="text1" value="" id="text1"/> + <input type="text" name="text2" value="" id="text2"/> = <input type="text" name="result" value="" readonly="true" id="result"/> <input type="button" value="相加" onclick="sum();"/>
<script>
function sum() {
var n1 = document.getElementById("text1").value;
var n2 = document.getElementById("text2").value;
document.getElementById("result").value = parseInt(n1)+parseInt(n2);
}
</script>