为什么我的输出重复？

Question

我想提醒 "running function cannons" 然后当我按确定时我只想说 "cannon ship sails off to 14 degrees" 但它一直在我的输出中打印警报。

JS

function alertMessage (message) {
alert (message);
}
alertMessage("the Battle has begun");



function alertShip (ship, number) {
alert (ship);
document.write (ship + "the ship sails off to " + number + "degrees");

}
alertShip("running function cannons", 14);

HTML

<!DOCTYPE html>
<html>
<html lang="en">
<head>
<meta charset="utf-8">
  <title>Functions</title>

    <!-- This links to the js code specific for this page -->
    <script src="functions.js"></script>
</head>
<body>



  <div id="output"> </div>  
 <div id="output2"> </div>  

</body>
</html>

Answer 1

不要给他们相同的变量来输出.. alert (ship) 然后 document.write (ship+.....)。试试这个

function alertShip (ship, number) {
alert (ship);
document.write ("Cannon ship sails off to " + number + "degrees");

Answer 2

尝试从 document.write 中删除 ship 参数并将语句替换为：

document.write("cannon ship sails off to " + 数字 + "度数");

那么，你应该能够得到你想要的输出。

*p.s.: 如果您在文本编辑器上执行此操作并尝试在浏览器上执行此操作运行，您可以考虑将标签更改为：.

希望对您有所帮助！

为什么我的输出重复？

Why is my output repeating?

javascript

parameters

alert

function

output