我想提醒“正在运行的功能加农炮”，然后按“确定”时，我只想说“加农炮船驶向14度角”，但它会在我的输出中不断显示提醒。
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);
的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>
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");
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