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html5.html
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<!DOCTYPE html>
<html lang="zh">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<link rel="icon" href="./favicon.ico" type="image/x-icon" />
<title>html5笔记 | 学习笔记</title>
<style>
* {
margin: 0;
padding: 0;
}
#div1 {background: red; width: 200px; height: 150px;}
.drag, .position {
margin-top: 20px;
}
#allmap {width: 400px;height:300px;}
.canvas {
position: relative;
width: 300px;
margin-top: 20px;
}
.canvas select {
position:absolute;
top:0;
right:0;
}
</style>
</head>
<body>
<div style="text-align:center;height: 346px;">
<button onclick="playPause()">播放/暂停</button>
<button onclick="makeBig()">大</button>
<button onclick="makeNormal()">中</button>
<button onclick="makeSmall()">小</button>
<select id="select" onchange="volume()" >
<option value="L">1</option>
<option value="M">0.5</option>
<option value="S">0</option>
</select>
<br />
<video id="video1" width="420" controls poster="https://www.runoob.com/images/img_the_scream.jpg" >
<!-- autoplay muted静音下自动播放video,兼容Chrome -->
<!-- mp4兼容IE,Safari和Chrome。ogg(优),webm兼容Chrome,Firefox和Opera -->
<source type="video/ogg" src="file:///C:/Users/lenovo/Desktop/慢才后生的网页/《奇幻森林》中文预告国语流畅.ogg" />
<source src="http://www.w3school.com.cn/example/html5/mov_bbb.mp4" type="video/mp4" />
<source src="http://www.w3school.com.cn/i/movie.ogg" type="video/ogg" />
Your browser does not support HTML5 video.
</video>
</div>
<audio controls muted autoplay loop style="background: red;">
<!-- autoplay自动播放audio,video(IE可行) -->
<source type="audio/mp3" src="http://www.ytmp3.cn/down/36706.mp3" />
</audio>
<a href="mailto:1260750674@qq.com;z1260750674@gmail.com?cc=name1@163.com&bcc=name2@139.com
&subject=哈%20哈
&body=邮%20件%20内%20容" target="_blank">邮件联系我</a>
<span style="cursor: pointer;" onclick="window.location.href='http://www.baidu.com';">百度一下</span>
<div class="drag">
<img id="drag1" src="https://www.runoob.com/images/img_the_scream.jpg" draggable="true" ondragstart="drag(event)" heidth="336px" height="69px" title="鼠标把我拖动到红框里" />
<div id="div1" ondrop="drop(event)" ondragover="allowDrop(event)"></div>
</div>
<div class="position">
<div id="allmap"></div>
<p>实际GPS坐标：纬度31.29444 经度121.48055</p>
WGS84 坐标：<p id="demo1"></p>
百度去偏坐标：<p id="demo2"></p>
<button onclick="getLocation()">获取位置</button><br />
</div>
<div class="canvas">
<canvas id="mycanvas" style="background: gray" width="220" height="200"></canvas>
<select id="select-mycanvas" onchange="mycanvas()" >
<option value="" selected="selected" disabled>选择形状</option>
<option value="rect">矩形</option>
<option value="line">线条</option>
<option value="arc">圆</option>
<option value="text">文本</option>
<option value="linear">径向渐变</option>
<option value="img">画布图像</option>
</select>
<ul style="font-size: 14px;">
<li><a href="./canvas定位鼠标光标位置.html">canvas定位鼠标光标位置</a></li>
<li><a href="./canvas lineWidth.html">canvas lineWidth</a></li>
</ul>
</div>
<svg width="180" height="140" xmlns="http://www.w3.org/2000/svg">
<!-- Created with Method Draw - http://github.com/duopixel/Method-Draw/ -->
<g>
<title>SVG</title>
<path stroke="null" height="142" width="182" y="-1" x="-1" id="canvas_background" d="m-0.5,-0.49999l175.99999,0l0,141.99998l-175.99999,0l0,-141.99998z" stroke-opacity="null" stroke-linecap="null" stroke-linejoin="null" stroke-width="null" fill-opacity="null" fill="#fff"/>
<g display="none" id="canvasGrid">
<rect fill="url(#gridpattern)" stroke-width="0" y="1" x="1" height="480" width="640" id="svg_3"/>
</g>
<rect id="svg_1" height="60" width="120" y="40" x="30" stroke-width="1.5" fill="#fff" stroke="#000"/>
<ellipse ry="30" rx="26" id="svg_2" cy="70" cx="90" stroke-width="1.5" stroke="#000" fill="#fff"/>
</g>
</svg>
<script type="text/javascript">
function mycanvas(){
var c = document.getElementById("mycanvas");
var ctx = c.getContext("2d");
function rect(obj){
obj.fillStyle="#FF0000";
obj.fillRect(0,0,150,75);
/*
obj.rect(0,0,150,75);
obj.fill();
*/
}
function line(obj){
obj.moveTo(0,0);
obj.lineTo(200,100);
obj.stroke();
}
function arc(obj){
obj.beginPath();
obj.arc(95,60,40,0,2*Math.PI);
obj.stroke();
}
function text(obj){
obj.font="30px Arial";
obj.fillText("Hello World",10,50);
}
function linear(obj){
// 创建渐变
var grd=obj.createLinearGradient(0,0,200,0); //圆渐变 createRadialGradient()
grd.addColorStop(0,"red");
grd.addColorStop(1,"white");
// 填充渐变
obj.fillStyle=grd;
obj.fillRect(10,10,150,80);
}
function drawImage(obj){
var img=document.getElementById("scream");
obj.drawImage(img,10,10);
}
var select = document.getElementById("select-mycanvas");
if(select.value==="rect"){
rect(ctx);
}else if(select.value==="line"){
line(ctx);
}else if(select.value==="arc"){
arc(ctx);
}else if(select.value==="text"){
text(ctx);
}else if(select.value==="linear"){
linear(ctx);
}else if(select.value==="img"){
drawImage(ctx);
}
}
</script>
<script>
function drag(ev) {
document.body.ondrop = function(event) {
event.preventDefault();
event.stopPropagation();
}
ev.dataTransfer.setData("Text", ev.target.id);
//alert(ev.target.id);
}
function allowDrop(ev) {
ev.preventDefault(); //避免浏览器对数据的默认处理（drop 事件的默认行为是以链接形式打开）
}
function drop(ev) {
var data = ev.dataTransfer.getData("Text"); //返回在 setData() 方法中设置为相同类型的任何数据
ev.target.appendChild(document.getElementById(data)); //被拖数据是被拖元素的 id ("drag1")
}
</script>
<script type="text/javascript">
var myVideo = document.getElementById("video1");
function playPause()
{
if (myVideo.paused)
myVideo.play();
else
myVideo.pause();
}
function makeBig()
{
myVideo.width= "560";
}
function makeSmall()
{
myVideo.width= "320";
}
function makeNormal()
{
myVideo.width= "420";
}
var select = document.getElementById("select");
function volume()
{
if(select.value==='L')
myVideo.volume = 1;
else if(select.value==='M')
myVideo.volume = 0.5;
else if (select.value==='S')
myVideo.volume = 0;
//已选option的 索引，value，音量
alert("index:"+select.selectedIndex + "\n value:" + select.value + "\n 音量:"+ myVideo.volume);
/* select.options[select.selectedIndex].value, select[select.selectedIndex].value 同 select.value */
//console.log(select.innerHTML); //select.innerText没有反应？？？
//注意：select.options[select.selectedIndex] 与 select[select.selectedIndex] 完全相同!!
//获取下拉列表 已选项的内容 的两种方式(select.options[select.selectedIndex].innerHTML 同 select.options[select.selectedIndex].text)
/*
//select对象中 索引为selectedIndex的 option选项的内容
alert("选项内容:" + select.options[select.selectedIndex].innerHTML);
*/
/*
for (var i=0;i<select.length;i++) {//下拉框的长度就是它的选项数.
if (select.options[i].selected == true )
alert("选项内容:" + select.options[i].text);//获取 当前选择项 的文本(text属性设置或返回的是包含在 <option> 元素中的纯文本).
}
// 其实本质就是：alert("选项内容:" + select.options[select.selectedIndex].text);
*/
}
</script>
<script type="text/javascript" src="https://api.map.baidu.com/api?v=2.0&ak=fft5rG0OGkhTSPABMsnEplwBXVrM1Nvi&s=1"></script>
<script>
var demo1=document.getElementById("demo1");
var demo2=document.getElementById("demo2");
// 先定位到 北京
var bm = new BMap.Map("allmap");
bm.centerAndZoom(new BMap.Point(116.331398,39.897445),10);
bm.addControl(new BMap.NavigationControl());
bm.enableScrollWheelZoom(true);
function getLocation(){
var options = {
enableHighAccuracy: true,
timeout: 10000,
maximumAge: 10
};
function success(pos) {
var crd = pos.coords;
//直接定位到 GPS坐标
var x = crd.longitude; //经度
var y = crd.latitude; //纬度
demo1.innerHTML = '纬度: ' + y + ' 经度: ' + x + '误差 ' + crd.accuracy+'米';
x = 121.4797129076,y = 31.2950211612;
var ggPoint = new BMap.Point(x,y);
bm.centerAndZoom(ggPoint, 15);
//添加gps marker和label
var markergg = new BMap.Marker(ggPoint);
bm.addOverlay(markergg); //添加GPS marker
var labelgg = new BMap.Label("未转换的GPS坐标（错误）",{offset:new BMap.Size(20,-10)});
markergg.setLabel(labelgg); //添加GPS label
//坐标转换完之后的回调函数
translateCallback = function (data){
if(data.status === 0) {
var marker = new BMap.Marker(data.points[0]);
bm.addOverlay(marker);
var label = new BMap.Label("转换后的百度坐标（正确）",{offset:new BMap.Size(20,-10)});
marker.setLabel(label); //添加百度label
bm.setCenter(data.points[0]); //以正确标记作为 地图中心
demo2.innerHTML = '纬度: ' + data.points[0].lat + ' 经度: ' + data.points[0].lng;
}
}
setTimeout(function(){
var convertor = new BMap.Convertor();
var pointArr = [];
pointArr.push(ggPoint);
convertor.translate(pointArr,1,5,translateCallback)
}, 1000);
}
function error(err) {
console.warn('ERROR(' + err.code + '): ' + err.message);
}
//判断浏览器是否支持定位
if (navigator.geolocation){
navigator.geolocation.getCurrentPosition(success, error, options);
}else{
demo1.innerHTML="该浏览器不支持获取地理位置。";
}
}
</script>
</body>
</html>