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用JS实现简易打赏功能

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发布： 2018-04-18 14:02:46

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这次给大家带来用JS实现简易打赏功能，用JS实现简易打赏功能的注意事项有哪些，下面就是实战案例，一起来看一下。

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<htmlxmlns="http://www.w3.org/1999/xhtml">
 
<head>
  <metahttp-equiv="Content-Type"content="text/html;"/>
  <title>打赏</title>
  <styletype="text/css">
    #dsSidebar {
      z-index: 999999;
      top: 18%;
      width: 200px;
      height: 200px;
      position: fixed;
      right: -200px;
    }
 
    #dsBtn {
      z-index: 999999;
      width: 30px;
      height: 58px;
      left: -30px;
      top: 80px;
      line-height: 28px;
      position: absolute;
    }
 
    .dsPanels {
      margin: 0px auto;
      overflow: hidden;
    }
 
    .dsPanel {
      float: left;
      margin: 0px 0px;
      padding: 12px 0px;
      text-align: center;
      background: #ffeedd;
      border-color: #ffeedd;
      border-radius: 8px;
    }
 
    .dsPanel-highlight {
      margin-top: 0;
      margin-bottom: 0;
      padding-left: 10px;
      padding-right: 10px;
      width: 160px;
      border: 8px solid #fd935c;
    }
 
    .dsPanel-button {
      display: block;
      font-size: 16px;
      font-weight: 500;
      color: #ffeedd;
      text-align: center;
      text-decoration: none;
      text-shadow: 0 1px rgba(black, .1);
      background: #fd935c;
      border-bottom: 2px solid #cf7e3b;
      border-color: rgba(black, .15);
      border-radius: 4px;
    }
 
    .dsPanel-title {
      width: 128px;
      margin: -15px auto 15px;
      padding-bottom: 0px;
      line-height: 22px;
      font-size: 14px;
      font-weight: bold;
      color: #ffeedd;
      text-shadow: 0 1px rgba(black, .05);
      background: #fd935c;
      border-radius: 0 0 4px 4px;
    }
  </style>
  <script>
    function moveBtn() {
      var dsBtn = document.getElementById("dsBtn");
      var now = new Date();
      var times = now.getTime();
      var offsetSize = Math.sin(times / 380.0) * 15 + 45;
      var radius = Math.sin(times / 380.0) * 18 + 24;
      dsBtn.style.left = -offsetSize + 'px';
      dsBtn.style.width = offsetSize + 'px';
      dsBtn.style.borderRadius = radius + 'px';
      setTimeout(moveBtn, 60);
    }
 
    var dsSidebarTimer = null;
    var dsSidebarOffsetRight = -200;
    function startMove(dsSidebarTarget, dsSidebarSpeed) {
      clearTimeout(dsSidebarTimer);
      function doMove() {
        var dsSidebar = document.getElementById('dsSidebar');
        dsSidebarSpeed *= 0.9;
        if (dsSidebarSpeed > -1 && dsSidebarSpeed <0) {
          dsSidebarSpeed = -1;
        } else if (dsSidebarSpeed < 1 && dsSidebarSpeed > 0) {
          dsSidebarSpeed = 1;
        }
        dsSidebarOffsetRight = dsSidebarOffsetRight + dsSidebarSpeed;
        if (dsSidebarSpeed > 0 && dsSidebarOffsetRight >= dsSidebarTarget) {
          dsSidebarOffsetRight = dsSidebarTarget;
          dsSidebar.style.right = dsSidebarOffsetRight + 'px';
        } else if (dsSidebarSpeed <0&& dsSidebarOffsetRight <= dsSidebarTarget) {
          dsSidebarOffsetRight=dsSidebarTarget;
          dsSidebar.style.right=dsSidebarOffsetRight+ 'px';
        } else {
          dsSidebar.style.right=dsSidebarOffsetRight+ 'px';
          dsSidebarTimer=setTimeout(doMove, 30);
        }
      }
      doMove();
    }
    document.getElementById('dsImg').onload=function() {
      vardsSidebar=document.getElementById('dsSidebar');
      dsSidebar.onmouseover=function() {
        startMove(0, 24);
      }
      dsSidebar.onmouseout=function() {
        startMove(-200, -24);
      }
      moveBtn();
    }
  </script>
</head>
 
<body>
  <pid="dsSidebar">
    <pclass="dsPanels">
      <pclass="dsPanel dsPanel-highlight">
        <pclass="dsPanel-title">喜欢请用微信打赏</p>
        <imgid='dsImg'src="http://files.cnblogs.com/files/eritpang/weixin.bmp"alt=""width="160"height="160"/>
      </p>
    </p>
    <spanclass="dsPanel-button"id='dsBtn'><b>打<br/>赏</b></span>
  </p>
</body>
 
</html>

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