我一直在学习本教程：https://www.youtube.com/watch?v=y0Ic8QcvyK8我决定点击一个按钮暂停动画。我试过了，试过了。搜索w3schools，在这里搜索，搜索谷歌发给我的任何地方。。。也许我只是个傻瓜，一个人想不通。。。。
这是使用的html im
<!DOCTYPE html>
<html lang="en" onscroll="scroller()">
<head>
<title></title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" type="text/css" href="layout.css">
<script type="text/javascript" src="myscripts.js"> </script>
<script type="text/javascript" src="svg.js"> </script>
</head>
<body>
<button id="b1" class="b3" onclick="change()"></button>
<div class="wrapper">
<svg id="tudo" version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
viewBox="0 0 1350 620" style="enable-background:new 0 0 1350 620;" xml:space="preserve">
<style type="text/css">
</style>
<g>
<rect x="14.41" y="12.48" class="st0" width="1414.59" height="596.52"/>
<path id="p1" class="st1" d="M22.61,207.89l37.94-26.66c10.4,16.7,25.49,24.32,45.85,24.32c22.27,0,37.21-9.08,37.21-21.68
c0-17.29-28.27-30.91-53.03-43.21c-26.51-13.18-55.66-27.69-55.66-65.33c0-40.87,34.57-67.82,77.93-67.82
c32.23,0,58.89,13.33,69.58,41.89l-35.01,24.46c-7.03-14.06-20.65-19.78-33.84-19.78c-17.72,0-30.91,10.25-30.91,22.41
c0,14.06,17.87,18.9,44.97,31.64c39.11,18.46,63.72,38.38,63.72,74.71c0,43.07-35.16,70.46-85.69,70.46
C67,253.3,38.43,237.19,22.61,207.89z"/>
<path class="st1" d="M220.08,12.48h82.91c45.7,0,83.06,35.89,83.06,79.83c0,43.8-37.35,79.54-83.06,79.54h-35.45v76.76h-47.46
V12.48z M338.58,91.87c0-17.87-15.97-32.37-35.6-32.37h-35.45v65.33l35.45,0.15C322.61,125.13,338.58,110.18,338.58,91.87z"/>
<path class="st1" d="M402.45,130.84c0-67.82,55.22-123.19,122.75-123.19s122.9,55.37,122.9,123.19
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c-41.16,0-74.71,33.69-74.71,75c0,41.02,33.54,74.56,74.71,74.56C566.36,205.11,600.06,171.56,600.06,130.55z"/>
<path class="st1" d="M816.56,59.5h-58.01v189.11h-47.61V59.5h-58.15V12.48h163.77V59.5z"/>
<path class="st1" d="M920.86,130.84c0-67.82,55.22-123.19,122.75-123.19s122.9,55.37,122.9,123.19
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<path class="st1" d="M1244.73,59.21v47.61h81.45v47.31h-81.45v94.78h-47.46V11.89h142.38v47.31H1244.73z"/>
<path class="st1" d="M197.81,536.98c0,34.86-25.05,71.63-73.68,71.63H34.92V372.48h64.45c41.89,0,68.55,30.76,68.55,62.55
c0,25.05-16.55,40.58-22.27,40.58C168.37,475.6,197.81,499.04,197.81,536.98z M82.23,418.62v46.14h19.19
c11.28,0,22.27-9.67,22.27-23.44c0-13.33-10.4-22.71-21.39-22.71H82.23z M151.52,533.61c0-13.62-9.38-27.25-31.93-27.25H82.23
v55.96h37.5C135.11,562.32,151.52,551.78,151.52,533.61z"/>
<path class="st1" d="M347.22,608.61l-75.15-111.62v111.62h-47.46l-0.15-236.13h77.05c44.09,0,80.27,33.98,80.27,76.46
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s-14.5-29.74-30.47-29.74h-30.47V478.83z"/>
<path class="st1" d="M571.2,575.65h-94.48l-15.09,32.96h-51.27l112.79-241.99h1.46l112.94,241.99h-51.42L571.2,575.65z
M552.74,535.22l-28.71-63.13l-28.86,63.13H552.74z"/>
<path class="st1" d="M850.98,371.89v241.11h-2.2L708.6,476.63v132.28h-47.46V368.08h2.34l139.89,136.08V371.89H850.98z"/>
<path class="st1" d="M1083.6,490.84c0,73.24-46.58,117.77-122.9,117.77H892V372.63l68.7-0.15
C1037.02,372.33,1083.6,417.16,1083.6,490.84z M1035.7,490.69c0-44.24-28.42-71.19-75.15-71.19h-21.24v141.8h21.68
C1007.43,561.3,1035.7,534.64,1035.7,490.69z"/>
<path class="st1" d="M1102.06,567.89l37.94-26.66c10.4,16.7,25.49,24.32,45.85,24.32c22.27,0,37.21-9.08,37.21-21.68
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C1146.44,613.3,1117.88,597.19,1102.06,567.89z"/>
</g>
</svg>
</div>
</body>
</html>
我的CSS
margin: 0 ;
padding: 0;
width: 100%;
}
body {
margin: 0;
padding: 0;
width: 100%;
text-align: center ;
height: 100vh;
display: table ;
background-color: black;
}
.wrapper {
position: absolute;
top: 45%;
left: 50%;
transform: translate(-50%, -50%);
width: 30%;
}
.st0{
fill:none;
}
.st1{
fill:none;
stroke:;
stroke-width:3;
stroke-miterlimit:10;
}
path {
stroke: white ;
fill: #fff;
stroke-dasharray: 300;
opacity: 10;
animation: animate 3s cubic-bezier(0,0.23,1,.1) infinite;
}
@keyframes animate {
0% {
opacity: 0;
fill: none;
stroke-dashoffset: 300;
}
30% {
opacity: 10;
fill: none ;
stroke-dashoffset: 300;
}
90% {
opacity: 50;
/*fill: rgba(255,255,255,1);*/
}
100% {
opacity: 10;
/*fill: rgba(255,255,255,1);*/
}
}
和我的JS
function change(){
var button = document.getElementById('b1'),
estado = document.getElementsByClassName("st1");
button.onclick = function() {
estado.style.animationPlayState = "paused";
}
}
非常感谢！
您的JS有一些错误。
-
通过在HTML中的按钮上绑定
change()函数，每次用户单击它时都会执行它，但函数本身会将单击事件绑定到按钮。由于您已经在JS中绑定了事件(顺便说一句，这是最佳实践(，您需要从HTML中删除change()函数，然后直接调用它，因此单击事件将只绑定一次。 -
顾名思义，
getElementsByClassName不返回单个元素，而是返回元素的集合，这意味着您必须循环遍历集合才能访问每个元素的样式属性。