我是Javascript的初學者,我有一個關於如何使用提示方法的基本問題。下面的代碼似乎沒有處理。是否有某種關於使用多個提示框的隱藏規則,或者我的代碼是否有語法錯誤?任何幫助將非常感激。提前致謝。Javascript中的提示()方法
<html>
<head>
<title> Two Numbers </title>
<script type="text/javascript">
var first = prompt("Enter first number:");
var second = prompt("Enter second number:");
var sum = (first-0) + (second-0);
var diff = first - second;
var divide = first/second;
var multi = first*second;
document.write(first + " + " + second " = " + sum + "<br />");
document.write(first + " + " + second " = " + diff + "<br />");
document.write(first + " + " + second " = " + divide + "<br />");
document.write(first + " + " + second " = " + multi + "<br />");
</script>
</head>
<body>
</body>
</html>
在任何主要瀏覽器中按F12並轉到控制檯,檢查控制檯。它會告訴你任何導致腳本執行結束的語法錯誤或錯誤。 – 2014-08-29 00:04:00
也許這是'second'和'「=」'之間缺少的'+'。這會導致解析錯誤,從而阻止腳本運行。 – 2014-08-29 00:05:38
http://jsfiddle.net/pdstu13p/1/ – Donal 2014-08-29 00:15:46