两个文本框的值添加后自动获取值
1,获取所些文本框的值
1 <script> 2 function show() { 3 var a1 = document.getElementById("a1"); 4 var a2 = document.getElementById("a2"); 5 var show = document.getElementById("show"); 6 show.innerHTML = "a1的值是：" + a1.value + "; a2的值是: " + a2.value; 7 } 8 </script> 9 <input name="a1" type="text" id="a1" onchange="show()" /> 10 <input name="a2" type="text" id="a2" /> 11 <input type="button" name="Submit" value="按钮" onclick="show();" /> 12 <div id="show"></div>
2,若是求两数之集的话
<script>
function show() {
var a1 = document.getElementById("a1");
var a2 = document.getElementById("a2");
var a3 = document.getElementById("a3");
a3.value = a1.value * a2.value;
}
</script>
function show() {
var a1 = document.getElementById("a1");
var a2 = document.getElementById("a2");
var a3 = document.getElementById("a3");
a3.value = a1.value * a2.value;
}
</script>
body中写
<input name="AWprice" type="text" id="a1" /> <input name="AddWareNumber" type="text" id="a2" onchange="show()" /> <input id="a3" type="text" name="AWMoney" />
效果图
