zoukankan html css js c++ java

夜间模式的开启与关闭，父模板的制作

夜间模式的开启与关闭
1. 放置点击的按钮或图片。
2. 定义开关切换函数。
3. onclick函数调用。

父模板的制作

制作网站网页共有元素的父模板html，包括顶部导航，中间区块划分，底部导航，底部说明等。
汇总相关的样式形成独立的css文件。
汇总相关的js代码形成独立的js文件。

形成完整的base.html+css+js

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>夜晚模式</title>
    <script>
        function mySwitch(){
            var oBody=document.getElementById("myBody");
            var oOnoff=document.getElementById("myOnOff");
            if(oOnoff.src.match("bulbon")){
                oOnoff.src="https://www.runoob.com/images/pic_bulboff.gif";
                oBody.style.background="black";
                oBody.style.color="white";
            }else{
                oOnoff.src="https://www.runoob.com/images/pic_bulbon.gif";
                oBody.style.background="white";
                oBody.style.color="black";
            }
        }
    </script>
</head>
<body id="myBody">
<img id="myOnOff" onclick="mySwitch()" src="https://www.runoob.com/images/pic_bulbon.gif"　width="40px">
<script>
    document.write(Date())
</script>
</body>
</html>

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>霓虹 - 点击打开你的视野</title>
    <link rel="stylesheet" href="../static/css/base.css" type="text/css">
    <script src="../static/js/base.js"></script>
</head>
<body id="myBody">
<nav style="padding-top:5px">
    <img id="myOnOff" onclick="mySwitch()"
         src="http://www.runoob.com/images/pic_bulbon.gif" width="30px">
        <a href="">首页</a>
        <a href="">下载APP</a>
        <a href="">登录</a>
        <a href="">注册</a>
</nav>

<div class="area">
<br>
<select>
    <option>文化</option>
    <option>留学</option>
    <option>旅游</option>
    <option>娱乐</option>
</select>
    <p>日本的“读书之秋”的由来及推荐的四本书</p>
    <p>2017红白歌会的出场名单会是这些人吗？</p>
</div>

<div class="subarea">
    <div class="img">
        <a href="https://www.zhihu.com/question/28715237/answer/83938634"><img
                src="https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1509619400048&di=0a3de93d08ed7737aef765d7d7605649&imgtype=0&src=http%3A%2F%2Fimg1.gtimg.com%2Fbj%2Fpics%2Fhv1%2F35%2F44%2F2049%2F133247480.png"></a>
        <div class="desc"><a href="https://www.zhihu.com/question/28715237/answer/83938634">日本的鲤鱼旗有什么含义？</a></div>
    </div>
    <div class="img">
        <a href="https://www.baidu.com/link?url=9TQR74QaJSq58bTzm0ELKi-BPFqgGU6PCsCKxv2f0iRZ5pUNy-eBcFwc_U1jyKCs&wd=&eqid=9c41d575000042b00000000659facdd0">
            <img src="http://www.sxdaily.com.cn/NMediaFile/2015/0307/SXRB201503070810000126303204969.jpg"></a>
        <div class="desc"><a href="https://www.baidu.com/link?url=9TQR74QaJSq58bTzm0ELKi-BPFqgGU6PCsCKxv2f0iRZ5pUNy-eBcFwc_U1jyKCs&wd=&eqid=9c41d575000042b00000000659facdd0">细品寿司的前世今生</a></div>

    </div>
</div>
<br>
<footer>
     <div class="footer_box">
        Copyright@丝滑酱
     </div>
</footer>
</body>
</html>

css

.img {
    border: 1px solid #cccccc;
     300px;
    margin: 5px;
    float: left;
}
div.img img {
     100%;
    height: auto;
}
div.img:hover {
    border: 1px solid #000000;
}
div.desc {
    text-align: center;
    padding: 5px;
}
.area {
    height: 250px;
}
.subarea {
    height: 100px;
}
footer{
     position:absolute;
     bottom:0;
     100%;
}
footer .footer_box{
     background-color:pink;
     padding: 10px;
     color : grey;
     text-align: center;
}

function mySwitch() {
    var oBody = document.getElementById("myBody");
    var oOnoff = document.getElementById("myOnOff");
    if (oOnoff.src.match("bulbon")) {
        oOnoff.src = "http://www.runoob.com/images/pic_bulboff.gif";
        oBody.style.background = "black";
        oBody.style.color = "yellow";
    } else {
        oOnoff.src = "http://www.runoob.com/images/pic_bulbon.gif";
        oBody.style.background = "white";
        oBody.style.color = "black";
    }
}

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原文地址：https://www.cnblogs.com/chenhuafei/p/7774569.html