编写代码
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<script src="jqueryjquery.js"></script>
</head>
<body>
<div>
number1：
<input type="text" name="" id="number1">
<br>
number2：
<input type="text" name="" id="number2">
<hr>
<button id="res">result</button>
<input type="text" name="" id="result">
</div>
<script>
$(document).ready(function() {
$("#res").click(function() {
// let num1=0,num2=0;
num1 = $("#number1").val();
num2 = $("#number2").val();
$("#result").val(Number(num1) + Number(num2));
res = parseInt(num1) + parseInt(num2);
// alert(res);
})
})
</script>
</body>
</html>
运行结果
