本文主要是介绍html 加载转圈功能，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！
方式一：
<html>
<body>
<input type="button" value="开始" onclick="ShowLoading('assa')">
<div>
<div id='paneloading' style='display:none;position:fixed;top:0px;left:0px;z-index:999999;width:100%;height:100%;background-color:lightgrey;filter:alpha(opacity=70);opacity:0.7;'>
<div style='z-index:9999999;width:300px;height:150px;position:fixed;top:50%;left:50%; margin-left:-150px;margin-top:-75px;filter:alpha(opacity=100);opacity:1;'>
</div>
<div style='text-align:center' id='loadingpicture'>
<img src='data:image/gif;base64,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' />
</div>
<div id='loadingcontent' style='text-align:center;height:40px;'>
正在加载...
</div>
</div>
</div><div id='PromptWarnProcess' style='display:none'>
<iframe width='100%' height='100%' frameborder='0' id='Preview'></iframe>
</div></body>
<html>
<script type="text/javascript">
function ShowLoading() {top.document.getElementById("paneloading").style.display = "";
}function HideLoading() {top.document.getElementById("paneloading").style.display = "none";
}
</script>方式二：
$(function () {$("<div id='PromptWarnProcess' style='display:none'><iframe width='100%' height='100%' frameborder='0' id='Preview'></iframe></div>").appendTo(document.body);var tempele = top.document.createElement("div");tempele.innerHTML = "<div id='paneloading' style='display:none;position:fixed;top:0px;left:0px;z-index:999999;width:100%;height:100%;background-color:lightgrey;filter:alpha(opacity=70);opacity:0.7;'><div style='z-index:9999999;width:300px;height:150px;position:fixed;top:50%;left:50%; margin-left:-150px;margin-top:-75px;filter:alpha(opacity=100);opacity:1;'><div style='text-align:center' id='loadingpicture'></div><div id='loadingcontent' style='text-align:center;height:40px;'></div></div></div>";top.document.body.appendChild(tempele.lastChild);
});function ShowLoading(title) {top.document.getElementById("loadingpicture").innerHTML = "<img src='data:image/gif;base64,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' />";top.document.getElementById("paneloading").style.display = "";top.document.getElementById("loadingcontent").innerHTML = title || "";
}function HideLoading() {top.document.getElementById("paneloading").style.display = "none";
}注意：
1.ShowLoading() 打开加载圈
2.HideLoading() 隐藏加载圈
3.不需要引用图片
4.img标签中src 已将图片转码
提供两个动态图 ，可以将图片转码base64后,替换img标签中src
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