1、首先先做一个简单的线一点一点画出来的效果，主要使用svg中的“strokeDasharray”、“strokeDashoffset”属性，通过css3中的transtion改变strokeDashoffset来实现动画。
注：path中的数据通过在ai中划线后存储为svg格式就可以拿到；
效果图：
代码如下：
<svg xmlns="http://www.w3.org/2000/svg"> <path d="M62.9 14.9c-25-7.74-56.6 4.8-60.4 24.3-3.73 19.6 21.6 35 39.6 37.6 42.8 6.2 72.9-53.4 116-58.9 65-18.2 191 101 215 28.8 5-16.7-7-49.1-34-44-34 11.5-31 46.5-14 69.3 9.38 12.6 24.2 20.6 39.8 22.9 91.4 9.05 102-98.9 176-86.7 18.8 3.81 33 17.3 36.7 34.6 2.01 10.2.124 21.1-5.18 30.1" stroke="#000" stroke-width="4" fill="none"> </path> </svg> <script> //svg 动画一般用transtion和animation var path1 = document.querySelector(".move_line1 path"); var length1 = path1.getTotalLength(); //清除动作 path1.style.transtion = path1.style.WebkitTransition = "none"; //设置起点 path1.style.strokeDasharray = length1 + ' ' + length1; path1.style.strokeDashoffset = length1; //获取一个区域，获取相关的样式，让浏览器寻找一个起始点 path1.getBoundingClientRect(); //定义动作 path1.style.transition = path1.style.WebkitTransition = 'stroke-dashoffset 2s ease-in-out'; //GO path1.style.strokeDashoffset = '0'; </script>
2、与画线的效果，接下来用同样的原理来画一个“蓝胖子”，蓝胖子同样是需要用ai画出来，将所有的元素存在数组里面遍历时改变transtion中的during和delay从而实现划线的先后顺序。
效果图：
代码如下：
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