[00031]-[2015-10-01]-[00]-[JavaScript 基础0]

weixin_30326515

于 2015-10-01 09:31:00 发布

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CC 4.0 BY-SA版权

文章标签： javascript ViewUI

原文链接：http://www.cnblogs.com/Auris/p/4850682.html

本文介绍如何使用HTML创建按钮元素，并通过JavaScript的switch-case结构实现点击按钮时显示不同城市的提示信息。

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[test.html]

<html>
<head>
    <title>Swtich/Case Handling</title>
    <script src = "1.js"></script>
</head>
<body>
    <h2>Famous City in China</h2>
    <form action = "#">
        <input type = "button" id = "Shanghai" value = "Shanghai">
        <input type = "button" id = "Beijing" value = "Beijing">
        <input type = "button" id = "Nanjing" value = "Nanjing">
    </form>
</body>
</html>

[1.js]

window.onload = InitAll;

function InitAll()
{
    document.getElementById("Shanghai").onclick = GetCity;
    document.getElementById("Beijing").onclick = GetCity;
    document.getElementById("Nanjing").onclick = GetCity;
}

function GetCity()
{
    switch(this.id)
    {
        case "Shanghai":
            alert("you select Shanghai !");
            break;
        case "Beijing":
            alert("you select Beijing !");
            break;
        case "Nanjing":
            alert("you select Nanjing !");
            break;
        default:
            break;
    }
}