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@@ -0,0 +1,102 @@
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+<!DOCTYPE html>
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+<html lang="en">
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+ <head>
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+ <meta charset="UTF-8" />
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+ <meta name="viewport" content="width=device-width, initial-scale=1.0" />
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+ <title>Document</title>
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+ <style>
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+ * {
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+ margin: 0;
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+ padding: 0;
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+ /* 触摸行为 */
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+ touch-action: none;
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+ }
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+ #container {
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+ width: 100%;
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+ position: relative;
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+ }
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+ #under {
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+ width: 90%;
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+ height: 500px;
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+ font-size: 24px;
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+ text-align: center;
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+ line-height: 500px;
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+ background: #eee;
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+ margin: 25px auto;
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+ }
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+ #dialog {
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+ width: 80%;
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+ height: 300px;
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+ background: #fff;
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+ position: absolute;
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+ top: 120px;
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+ left: 38px;
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+ z-index: 99;
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+ }
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+ #title {
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+ width: 100%;
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+ height: 200px;
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+ text-align: center;
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+ line-height: 200px;
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+ }
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+ #action {
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+ position: absolute;
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+ top: 200px;
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+ left: 100px;
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+ }
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+ #close {
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+ width: 100px;
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+ height: 35px;
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+ text-align: center;
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+ line-height: 35px;
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+ color: #fff;
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+ background: #00f;
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+ }
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+ #mask {
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+ width: 100%;
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+ background: rgba(0, 0, 0, .5);
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+ position: fixed;
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+ top: 0;
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+ left: 0;
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+ right: 0;
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+ bottom: 0;
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+ }
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+ </style>
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+ </head>
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+ <body>
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+ <div id="container">
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+ <div id="under">底层元素</div>
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+ <div id="dialog">
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+ <div id="title">弹出层</div>
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+ <div id="action">
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+ <div id="close">关闭</div>
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+ </div>
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+ </div>
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+ <div id="mask"></div>
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+ </div>
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+ <script>
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+ var close = document.getElementById("close");
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+ var under = document.getElementById("under");
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+ /**
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+ * 点透事件
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+ * 1.两层元素叠加到一起
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+ * 2.第一层是touch事件
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+ * 3.第二层是click事件或者a标签
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+ *
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+ *
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+ * 解决方案：
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+ * 1.event.preventDefault()
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+ * 2.将click事件全部换成touch
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+ * */
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+ close.ontouchstart = function(event) {
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+ // event.preventDefault();
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+ document.getElementById("dialog").style.display = 'none';
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+ document.getElementById("mask").style.display = 'none';
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+ }
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+ // touchstart => touchmove => touchend
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+ under.onclick = function() {
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+ alert("弹出");
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+ }
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+ </script>
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+ </body>
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+</html>
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