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  • 浏览网站看到苦逼的表白程序，忍不住都保存下来。这就是程序员的浪费

    第一个场面

    <!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>#三行情书#</title>
<link rel="shortcut icon" href="./logo.ico" type="image/x-icon" />
<link type="text/css" rel="stylesheet" href='http://fonts.googleapis.com/css?family=Ubuntu:300italic,300,700' />
<link rel="stylesheet" type="text/css" href="./css/main.css">
<script type="text/javascript" src="js/jquery-1.8.3.min.js"></script>
<script type="text/javascript" src="main.js"></script>
<style>
    * {
  box-sizing: border-box;
}

body {
  padding: 0;
  margin: 0;
  background: #212121;
  overflow: hidden;
}

.mosaica {
  position: fixed;
  left: 2px;
  bottom: 2px;
  padding: 4px 6px;
  color: #FFFFFF;
  font-family: "Montserrat";
  font-size: 11px;
  letter-spacing: 0.06em;
}
.mosaica a{
  color: #fff;
  font-size: 30px;
  text-decoration: none;
  margin: 0 0 0 30px;
}
.mosaica a:hover{
  color: orange;
}
.container {
  position: absolute;
  width: 0;
  height: 0;
  left: 43%;
  top: 50%;
  perspective: 1200px;
  transform-origin: center center;
  cursor: move;
}

.plane {
  position: absolute;
  display: block;
  width: 900px;
  height: 700px;
  border: 0;
  margin: -350px 0 0 -450px;
  transform-style: preserve-3d;
}
.plane:before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  background: url('../img/background.jpg') no-repeat;
  background-size: 100% 700px;
  width: 100%;
  height: 100%;
  z-index: -1;
  transform: translateZ(-1px);
}

.items {
  position: relative;
  transform-style: preserve-3d;
}

.item {
  background-color: pink;
  position: absolute;
  overflow: hidden;
  /*border: 1px solid #2785db;*/
}
.item2,
.item3{
  position: absolute;
  left: 0;
  top:0;
  overflow: hidden;
  width: 100%;
  height: 100%;
  background:url(../img/heart.png) no-repeat center;
  background-size: 85px 69.5px;
  color: #fff;
  text-align: center;
  font-size: 75px;
  line-height: 87.5px;
  font-family: "微软雅黑","helvetica neue",arial,sans-serif;
  font-weight: 900;
  text-shadow:0 1px 0 rgba(0, 0, 0, 0.3);
}

@keyframes animate {
  0% {
    transform: translate3d(0px, 0px, 0px) rotateX(0deg) rotateY(0deg) rotateZ(0deg) scale3d(1, 1, 1);
    transform-origin: 50% 50% 0;
    opacity: 1;
  } 
  100% {
    transform: translate3d(0px, 0px, 1200px) rotateX(180deg) rotateY(360deg) rotateZ(180deg) scale3d(0, 0, 0);
    transform-origin: 50% 50% 0;
    opacity: 1;
  }
}
@keyframes animate3 {
  0% {
    transform: translate3d(0px, 0px, 0px) rotateX(0deg) rotateY(0deg) rotateZ(0deg) scale3d(1, 1, 1);
    transform-origin: 50% 50% 0;
    font-size: 75px;
    opacity: 1;
  }  
  100% {
    transform: translate3d(0px, 0px, 1200px) rotateX(0deg) rotateY(0deg) rotateZ(0deg) scale3d(0, 0, 0);
    transform-origin: 50% 50% 0;
    font-size: 150px;
    opacity: 1;
    color: orange;
  }
}

.item.animate {
  transform: translate3d(0px, 0px, 0px) rotateX(0deg) rotateY(0deg) rotateZ(0deg) scale3d(1, 1, 1);
  transform-origin: 50% 50% 0;
  animation: animate 15s forwards;
}
.item2.animate {
  transform: translate3d(0px, 0px, 0px) rotateX(0deg) rotateY(0deg) rotateZ(0deg) scale3d(1, 1, 1);
  transform-origin: 50% 50% 0;
  animation: animate 10s forwards;
}
.item3.animate {
  transform: translate3d(0px, 0px, 0px) rotateX(0deg) rotateY(0deg) rotateZ(0deg) scale3d(1, 1, 1);
  transform-origin: 50% 50% 0;

  animation: animate3 10s forwards;
}
.poem{
  position: absolute;
  top:18%;
  left: 78%;
  line-height: 80px;
  color: #fff;
  font-size: 30px;
  font-family: "微软雅黑","helvetica neue",arial,sans-serif;
  font-weight: 800;
  text-shadow:1px 0px #009807, 1px 2px #006705, 3px 1px #009807, 2px 3px #006705, 4px 2px #009807, 4px 4px #006705, 5px 3px #009807;
}
</style>
</head>
<body>
  <audio autoplay="autopaly">
      <source src="song.mp3" type="audio/mp3" />
  </audio>  
  <div class="poem">
    梦随风醉缠绵<br>
    情如茧凝成缘<br>
    百花牵衣吐艳
  </div>
<div class="container">
  <div id="plane1" class="plane">
    <div class="items">
      <!-- 第一行 -->
      <div class="item" style="top: 0px; left: 0px;  100px; height: 87.5px; animation-delay: 8.64s;background: url('./img/13.jpg') no-repeat; background-size: 100% 87.5px;"></div>
      <div class="item" style="top: 0px; left: 100px;  100px; height: 87.5px; animation-delay: 8.56s; background: url('./img/13.jpg') no-repeat; background-size: 100% 87.5px;"></div>
      <div class="item3" style="top: 0px; left: 200px;  100px; height: 87.5px; animation-delay: 14.96s; background: url('./img/12.jpg') no-repeat; background-size: 100% 87.5px;"></div>
      <div class="item" style="top: 0px; left: 300px;  100px; height: 87.5px; animation-delay: 9.74s; background: url('./img/13.jpg') no-repeat; background-size: 100% 87.5px;"></div>
      <div class="item" style="top: 0px; left: 400px;  100px; height: 87.5px; animation-delay: 8.28s; background: url('./img/13.jpg') no-repeat; background-size: 100% 87.5px;"></div>
      <div class="item" style="top: 0px; left: 500px;  100px; height: 87.5px;animation-delay: 8.88s;  background: url('./img/13.jpg') no-repeat; background-size: 100% 87.5px;"></div>
      <div class="item" style="top: 0px; left: 600px;  100px; height: 87.5px;animation-delay: 14.96s;  background: url('./img/12.jpg') no-repeat; background-size: 100% 87.5px;"></div>
      <div class="item" style="top: 0px; left: 700px;  100px; height: 87.5px; animation-delay: 9.76s; background: url('./img/13.jpg') no-repeat; background-size: 100% 87.5px;"></div>
      <div class="item" style="top: 0px; left: 800px;  100px; height: 87.5px; animation-delay: 8.4s; background: url('./img/13.jpg') no-repeat; background-size: 100% 87.5px;"></div>

      <div class="item2" style="top: 0px; left: 200px;  100px; height: 87.5px; animation-delay: 1.64s; font-size: 25px;">风</div>
      <div class="item2" style="top: 0px; left: 600px;  100px; height: 87.5px; animation-delay: 2.44s;  font-size: 25px;">情</div>


       <!-- 第二行 -->
      <div class="item" style="top: 87.5px; left: 0px;  100px; height: 87.5px; animation-delay: 8.12s; background: url('./img/13.jpg') no-repeat; background-size: 100% 87.5px;"></div>
      <div class="item" style="top: 87.5px; left: 100px;  100px; height: 87.5px; animation-delay: 14.96s; background: url('./img/12.jpg') no-repeat; background-size: 100% 87.5px;"></div>
      <div class="item3" style="top: 87.5px; left: 200px;  100px;height: 87.5px;animation-delay: 15.96s;  background: url('./img/100.jpg') no-repeat; background-size: 100% 87.5px;"></div>
      <div class="item" style="top: 87.5px; left: 300px;  100px; height: 87.5px; animation-delay: 14.96s; background: url('./img/12.jpg') no-repeat; background-size: 100% 87.5px;"></div>
      <div class="item" style="top: 87.5px; left: 400px;  100px; height: 87.5px; animation-delay: 8.8s; background: url('./img/13.jpg') no-repeat; background-size: 100% 87.5px;"></div>
      <div class="item" style="top: 87.5px; left: 500px;  100px; height: 87.5px; animation-delay: 14.96s; background: url('./img/12.jpg') no-repeat; background-size: 100% 87.5px;"></div>
      <div class="item3" style="top: 87.5px; left: 600px;  100px;height: 87.5px;animation-delay: 15.96s;  background: url('./img/100.jpg') no-repeat; background-size: 100% 87.5px;"></div>
      <div class="item" style="top: 87.5px; left: 700px;  100px;height: 87.5px;animation-delay: 14.96s;  background: url('./img/12.jpg') no-repeat; background-size: 100% 87.5px;"></div>
      <div class="item" style="top: 87.5px; left: 800px;  100px; height: 87.5px; animation-delay: 9.48s; background: url('./img/13.jpg') no-repeat; background-size: 100% 87.5px;"></div>

      <div class="item2" style="top: 87.5px; left: 100px;  100px; height: 87.5px; animation-delay: 1.24s;font-size: 25px;">随</div>
      <div class="item2" style="top: 87.5px; left: 300px;  100px; height: 87.5px; animation-delay: 1.84s;font-size: 25px;">醉</div>
      <div class="item2" style="top: 87.5px; left: 500px;  100px; height: 87.5px; animation-delay: 2.24s;font-size: 25px;">绵</div>
      <div class="item2" style="top: 87.5px; left: 700px;  100px;height: 87.5px;animation-delay: 2.64s; font-size: 25px;">如</div>

       <!-- 第三行 -->
      <div class="item" style="top: 175px; left: 0px;  100px; height: 87.5px; animation-delay: 14.96s; background: url('./img/12.jpg') no-repeat; background-size: 100% 87.5px;"></div>
      <div class="item3" style="top: 175px; left: 100px;  100px; height: 87.5px; animation-delay: 15.96s; background: url('./img/100.jpg') no-repeat; background-size: 100% 87.5px;"></div>
      <div class="item3" style="top: 175px; left: 200px;  100px; height: 87.5px; animation-delay: 15.96s; background: url('./img/100.jpg') no-repeat; background-size: 100% 87.5px;"> </div>
      <div class="item3" style="top: 175px; left: 300px;  100px; height: 87.5px; animation-delay: 15.96s; background: url('./img/100.jpg') no-repeat; background-size: 100% 87.5px;"> </div>
      <div class="item" style="top: 175px; left: 400px;  100px; height: 87.5px; animation-delay: 14.96s; background: url('./img/12.jpg') no-repeat; background-size: 100% 87.5px;"> </div>
      <div class="item3" style="top: 175px; left: 500px;  100px; height: 87.5px;animation-delay: 15.96s;  background: url('./img/100.jpg') no-repeat; background-size: 100% 87.5px;"> </div>
      <div class="item3" style="top: 175px; left: 600px;  100px; height: 87.5px;animation-delay: 15.96s;  background: url('./img/100.jpg') no-repeat; background-size: 100% 87.5px;"> </div>
      <div class="item3" style="top: 175px; left: 700px;  100px; height: 87.5px; animation-delay: 15.96s; background: url('./img/100.jpg') no-repeat; background-size: 100% 87.5px;"></div>
      <div class="item" style="top: 175px; left: 800px;  100px; height: 87.5px; animation-delay: 14.96s; background: url('./img/12.jpg') no-repeat; background-size: 100% 87.5px;"> </div>

      <div class="item2" style="top: 175px; left: 0px;  100px; height: 87.5px; animation-delay: 1.04s;font-size: 25px;">梦</div>
      <div class="item2" style="top: 175px; left: 400px;  100px; height: 87.5px; animation-delay: 2.04s;font-size: 25px;">缠 </div>
      <div class="item2" style="top: 175px; left: 800px;  100px; height: 87.5px; animation-delay: 2.84s;font-size: 25px;">茧 </div>

       <!-- 第四行 -->
      <div class="item" style="top: 262.5px; left: 0px;  100px; height: 87.5px; animation-delay: 14.96s; background: url('./img/12.jpg') no-repeat; background-size: 100% 87.5px;"> </div>
      <div class="item3" style="top: 262.5px; left: 100px;  100px; height: 87.5px; animation-delay: 15.96s; background: url('./img/100.jpg') no-repeat; background-size: 100% 87.5px;"> </div>
      <div class="item3" style="top: 262.5px; left: 200px;  100px;height: 87.5px;animation-delay: 15.96s;  background: url('./img/100.jpg') no-repeat; background-size: 100% 87.5px;"> </div>
      <div class="item3" style="top: 262.5px; left: 300px;  100px; height: 87.5px; animation-delay: 15.96s; background: url('./img/100.jpg') no-repeat; background-size: 100% 87.5px;"></div>
      <div class="item3" style="top: 262.5px; left: 400px;  100px; height: 87.5px; animation-delay: 15.96s; background: url('./img/100.jpg') no-repeat; background-size: 100% 87.5px;"> </div>
      <div class="item3" style="top: 262.5px; left: 500px;  100px; height: 87.5px; animation-delay: 15.96s; background: url('./img/100.jpg') no-repeat; background-size: 100% 87.5px;"> </div>
      <div class="item3" style="top: 262.5px; left: 600px;  100px;height: 87.5px;animation-delay: 15.96s;  background: url('./img/100.jpg') no-repeat; background-size: 100% 87.5px;"> </div>
      <div class="item3" style="top: 262.5px; left: 700px;  100px;height: 87.5px;animation-delay: 15.96s;  background: url('./img/100.jpg') no-repeat; background-size: 100% 87.5px;"> </div>
      <div class="item" style="top: 262.5px; left: 800px;  100px; height: 87.5px; animation-delay: 14.96s; background: url('./img/12.jpg') no-repeat; background-size: 100% 87.5px;"></div>

      <div class="item2" style="top: 262.5px; left: 0px;  100px; height: 87.5px; animation-delay: 4.64s;font-size: 25px;">艳</div>
      <div class="item2" style="top: 262.5px; left: 800px;  100px; height: 87.5px; animation-delay: 3.04s;font-size: 25px;"> 凝</div>

       <!-- 第五行 -->
      <div class="item" style="top: 350px; left: 0px;  100px; height: 87.5px; animation-delay: 8.04s; background: url('./img/13.jpg') no-repeat; background-size: 100% 87.5px;"></div>
      <div class="item" style="top: 350px; left: 100px;  100px; height: 87.5px; animation-delay: 14.96s; background: url('./img/12.jpg') no-repeat; background-size: 100% 87.5px;"></div>
      <div class="item3" style="top: 350px; left: 200px;  100px; height: 87.5px; animation-delay: 15.96s; background: url('./img/100.jpg') no-repeat; background-size: 100% 87.5px;"> </div>
      <div class="item3" style="top: 350px; left: 300px;  100px; height: 87.5px; animation-delay: 15.96s; background: url('./img/100.jpg') no-repeat; background-size: 100% 87.5px;"> </div>
      <div class="item3" style="top: 350px; left: 400px;  100px; height: 87.5px; animation-delay: 15.96s; background: url('./img/100.jpg') no-repeat; background-size: 100% 87.5px;"> </div>
      <div class="item3" style="top: 350px; left: 500px;  100px; height: 87.5px;animation-delay: 15.96s;  background: url('./img/100.jpg') no-repeat; background-size: 100% 87.5px;"> </div>
      <div class="item3" style="top: 350px; left: 600px;  100px; height: 87.5px;animation-delay: 15.96s;  background: url('./img/100.jpg') no-repeat; background-size: 100% 87.5px;"> </div>
      <div class="item" style="top: 350px; left: 700px;  100px; height: 87.5px; animation-delay: 14.96s; background: url('./img/12.jpg') no-repeat; background-size: 100% 87.5px;"></div>
      <div class="item" style="top: 350px; left: 800px;  100px; height: 87.5px; animation-delay: 8.4s; background: url('./img/13.jpg') no-repeat; background-size: 100% 87.5px;"> </div>

      <div class="item2" style="top: 350px; left: 100px;  100px; height: 87.5px; animation-delay: 4.44s; font-size: 25px;">吐</div>
      <div class="item3" style="top: 350px; left: 300px;  100px; height: 87.5px; animation-delay: 5.64s; background:none; "> I</div>
      <div class="item3" style="top: 350px; left: 400px;  100px; height: 87.5px; animation-delay: 5.64s; background:none; "> L</div>
      <div class="item3" style="top: 350px; left: 500px;  100px; height: 87.5px; animation-delay: 5.64s;  background:none; "> U</div>
      <div class="item2" style="top: 350px; left: 700px;  100px; height: 87.5px; animation-delay: 3.24s; font-size: 25px;">成</div>


       <!-- 第六行 -->
      <div class="item" style="top: 437.5px; left: 0px;  100px; height: 87.5px; animation-delay: 9.68s; background: url('./img/13.jpg') no-repeat; background-size: 100% 87.5px;"> </div>
      <div class="item" style="top: 437.5px; left: 100px;  100px; height: 87.5px; animation-delay: 8.01s; background: url('./img/13.jpg') no-repeat; background-size: 100% 87.5px;"> </div>
      <div class="item" style="top: 437.5px; left: 200px;  100px;height: 87.5px;animation-delay: 14.96s;  background: url('./img/12.jpg') no-repeat; background-size: 100% 87.5px;"> </div>
      <div class="item3" style="top: 437.5px; left: 300px;  100px; height: 87.5px; animation-delay: 15.96s; background: url('./img/100.jpg') no-repeat; background-size: 100% 87.5px;"></div>
      <div class="item3" style="top: 437.5px; left: 400px;  100px; height: 87.5px; animation-delay: 15.96s; background: url('./img/100.jpg') no-repeat; background-size: 100% 87.5px;"> </div>
      <div class="item3" style="top: 437.5px; left: 500px;  100px; height: 87.5px; animation-delay: 15.96s; background: url('./img/100.jpg') no-repeat; background-size: 100% 87.5px;"> </div>
      <div class="item" style="top: 437.5px; left: 600px;  100px;height: 87.5px;animation-delay: 14.96s;  background: url('./img/12.jpg') no-repeat; background-size: 100% 87.5px;"> </div>
      <div class="item" style="top: 437.5px; left: 700px;  100px;height: 87.5px;animation-delay: 8.29s;  background: url('./img/13.jpg') no-repeat; background-size: 100% 87.5px;"> </div>
      <div class="item" style="top: 437.5px; left: 800px;  100px; height: 87.5px; animation-delay: 9.2s; background: url('./img/13.jpg') no-repeat; background-size: 100% 87.5px;"></div>

      <div class="item2" style="top: 437.5px; left: 200px;  100px; height: 87.5px; animation-delay: 4.24s;font-size: 25px;"> 衣</div>
      <div class="item2" style="top: 437.5px; left: 600px;  100px; height: 87.5px;animation-delay: 3.44s; font-size: 25px;"> 缘</div>

       <!-- 第七行 -->
      <div class="item" style="top: 525px; left: 0px;  100px; height: 87.5px; animation-delay: 8.98s; background: url('./img/13.jpg') no-repeat; background-size: 100% 87.5px;"> </div>
      <div class="item" style="top: 525px; left: 100px;  100px; height: 87.5px; animation-delay: 9.15s; background: url('./img/13.jpg') no-repeat; background-size: 100% 87.5px;"> </div>
      <div class="item" style="top: 525px; left: 200px;  100px;height: 87.5px;animation-delay: 8.78s;  background: url('./img/13.jpg') no-repeat; background-size: 100% 87.5px;"> </div>
      <div class="item" style="top: 525px; left: 300px;  100px; height: 87.5px; animation-delay: 14.96s; background: url('./img/12.jpg') no-repeat; background-size: 100% 87.5px;"></div>
      <div class="item3" style="top: 525px; left: 400px;  100px; height: 87.5px; animation-delay:15.96s; background: url('./img/100.jpg') no-repeat; background-size: 100% 87.5px;"> </div>
      <div class="item" style="top: 525px; left: 500px;  100px; height: 87.5px; animation-delay: 14.96s; background: url('./img/12.jpg') no-repeat; background-size: 100% 87.5px;"> </div>
      <div class="item" style="top: 525px; left: 600px;  100px;height: 87.5px;animation-delay: 8.12s;  background: url('./img/13.jpg') no-repeat; background-size: 100% 87.5px;"> </div>
      <div class="item" style="top: 525px; left: 700px;  100px;height: 87.5px;animation-delay: 8.68s;  background: url('./img/13.jpg') no-repeat; background-size: 100% 87.5px;"> </div>
      <div class="item" style="top: 525px; left: 800px;  100px; height: 87.5px; animation-delay: 8.97s; background: url('./img/13.jpg') no-repeat; background-size: 100% 87.5px;"></div>

      <div class="item2" style="top: 525px; left: 300px;  100px; height: 87.5px; animation-delay: 4.04s;font-size: 25px;"> 牵</div>
      <div class="item2" style="top: 525px; left: 500px;  100px; height: 87.5px;animation-delay: 3.64s; font-size: 25px;"> 百</div>

       <!-- 第八行 -->
      <div class="item" style="top: 612.5px; left: 0px;  100px; height: 87.5px; animation-delay: 8.89s; background: url('./img/13.jpg') no-repeat; background-size: 100% 87.5px;"> </div>
      <div class="item" style="top: 612.5px; left: 100px;  100px; height: 87.5px; animation-delay: 8.87s; background: url('./img/13.jpg') no-repeat; background-size: 100% 87.5px;"> </div>
      <div class="item" style="top: 612.5px; left: 200px;  100px;height: 87.5px;animation-delay: 8.99s;  background: url('./img/13.jpg') no-repeat; background-size: 100% 87.5px;"> </div>
      <div class="item" style="top: 612.5px; left: 300px;  100px; height: 87.5px; animation-delay: 8.25s; background: url('./img/13.jpg') no-repeat; background-size: 100% 87.5px;"></div>
      <div class="item" style="top: 612.5px; left: 400px;  100px; height: 87.5px; animation-delay:14.96s; background: url('./img/12.jpg') no-repeat; background-size: 100% 87.5px;"> </div>
      <div class="item" style="top: 612.5px; left: 500px;  100px; height: 87.5px; animation-delay: 8.97s; background: url('./img/13.jpg') no-repeat; background-size: 100% 87.5px;"> </div>
      <div class="item" style="top: 612.5px; left: 600px;  100px;height: 87.5px;animation-delay: 8.9s;  background: url('./img/13.jpg') no-repeat; background-size: 100% 87.5px;"> </div>
      <div class="item" style="top: 612.5px; left: 700px;  100px;height: 87.5px;animation-delay: 9s;  background: url('./img/13.jpg') no-repeat; background-size: 100% 87.5px;"> </div>
      <div class="item" style="top: 612.5px; left: 800px;  100px; height: 87.5px; animation-delay: 8.5s; background: url('./img/13.jpg') no-repeat; background-size: 100% 87.5px;"></div>

      <div class="item2" style="top: 612.5px; left: 400px;  100px; height: 87.5px; animation-delay: 3.84s;font-size: 25px;">花 </div>
    </div>
  </div>
</div>
</body>
</html>

     第二个场面，动态心砰砰动

    <!DOCTYPE HTML>
<html>
<head>
<meta charset="UTF-8"/>
<title>myHeart</title>
<style type="text/css">
*{
margin: 0;
padding: 0;
}
.heart{
position:absolute;
left: 50%;
top:50%;
margin-left: -150px;
margin-top: -135px;
width: 300px;
height:270px;
background: transparent;
/*box-shadow: 2px 2px 5px #000;*/
filter:drop-shadow(0px 0px 20px rgb(255,20,20));
animation: test 1s linear infinite;
}
.heart:before,
.heart:after{
content: "";
position: absolute;
left: 150px;
width: 150px;
height: 240px;
background: rgb(255,0,0);
border-radius: 150px 150px 0 0;
transform:rotate(-45deg);
transform-origin: 0 100%;
}
.heart:after{
left: 0;
transform:rotate(45deg);
transform-origin: 100% 100%;
}
@keyframes test{
0%{
transform: scale(0.8,0.8);
opacity: 1;
}
25%{
transform: scale(1,1);
opacity: 0.8;
}
100%{
transform: scale(0.8,0.8);
opacity: 1;
}
}
</style>
</head>
<body>
<div class="heart"></div>
<script>
// alert(window.navigator.userAgent);
</script>
</body>
</html>

    第三个场景，画出一个心

    <!DOCTYPE html> 
<html> 
<head> 
<title>Draw Heart</title> 
<style type="text/css"> 
* { 
margin: 0; 
padding: 0; 
} 

html { 
height: 100%; 
margin: 0; 
} 

body { 
height: 100%; 
background-color:white; 
} 

#canvasZone { 
width: 100%; 
height: 100%; 
text-align: center; 
background-color: black; 
} 

#myCanvas { 
height:100%; 
display: block; 
/*background-color:aqua;*/ 
} 
</style> 
<script type="text/javascript"> 
var arr = [];//保存所有的XY坐标，只为验证。实际程序中可删除。 
var r = 4; 
var radian;//弧度 
var i; 
var radianDecrement;//弧度增量 
var time = 10;//每个点之间的时间间隔 
var intervalId; 
var num = 360;//分割为 360 个点 
var startRadian = Math.PI; 
var ctx; 
window.onload = function () { 
startAnimation(); 
} 
function startAnimation() { 
ctx = document.getElementById("myCanvas").getContext("2d"); 
//让画布撑满整个屏幕，-20是滚动条的位置，需留出。如滚动条出现则会挤压画布。 
WINDOW_HEIGHT=document.documentElement.clientHeight-20; 
WINDOW_WIDTH=document.documentElement.clientWidth-20; 
ctx.width = WINDOW_WIDTH; 
ctx.heigh = WINDOW_HEIGHT; 
drawHeart(); 
} 

function drawHeart() { 

ctx.strokeStyle = "red"; 
ctx.lineWidth = 1;//设置线的宽度 
radian = startRadian;//弧度设为初始弧度 
radianDecrement = Math.PI / num * 2; 
ctx.moveTo(getX(radian), getY(radian));//移动到初始点 
i = 0; 
intervalId = setInterval("printHeart()", time); 
} 
//x = 16 sin^3 t, y = (13 cos t - 5 cos 2t - 2 cos 3t - cos 4t) 
function printHeart() { 
radian += radianDecrement; 
ctx.lineTo(getX(radian), getY(radian));//在旧点和新点之间连线 
//arr.push("X:" + getX(radian) + "<br/>Y:" + getY(radian) + "<br/>"); 
i++; 
ctx.stroke();//画线 
if (i >= num) { 
clearInterval(intervalId); 
//document.getElementById("bs").innerHTML = arr.join("");//打印所有的XY坐标点。 
} 
} 
function getX(t) {//由弧度得到 X 坐标 
return 100 + r * (16 * Math.pow(Math.sin(t), 3)); 
} 

function getY(t) {//由弧度得到 Y 坐标 
return 50 - r * (13 * Math.cos(t) - 5 * Math.cos(2 * t) - 2 * Math.cos(3 * t) - Math.cos(4 * t)); 
} 
</script> 
</head> 
<body> 
<div id="canvasZone"> 
<canvas id="myCanvas"></canvas> 
</div> 
<div id="bs"> 
</div> 
</body> 
</html>
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  • 原文地址：https://www.cnblogs.com/binmengxue/p/9634784.html
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