在vue2中怎么利用svg开发一个环形进度条组件
本篇内容主要讲解“在vue2中怎么利用svg开发一个环形进度条组件”,感兴趣的朋友不妨来看看。本文介绍的方法操作简单快捷,实用性强。下面就让小编来带大家学习“在vue2中怎么利用svg开发一个环形进度条组件”吧!
让客户满意是我们工作的目标,不断超越客户的期望值来自于我们对这个行业的热爱。我们立志把好的技术通过有效、简单的方式提供给客户,将通过不懈努力成为客户在信息化领域值得信任、有价值的长期合作伙伴,公司提供的服务项目有:主机域名、虚拟空间、营销软件、网站建设、龙凤网站维护、网站推广。

普通的矩形进度条我们通过div+css很容易就可以实现,而环形的就有点麻烦,当然他也可以用div+css通过背景属性或者clip属性配合css3变量做障眼法去实现,但是过于复杂而且兼容和控制起来都比较麻烦,所以,达到最佳效果我们还是去使用svg实现吧。
开发自己组件好处就是,里面的大小,颜色,粗细,动画等等都可以任意扩展,准备好了么,马上要开始啦~
正文
1.传参与计算
相信大家通过上面的注释怎么开发就会猜的八九不十,我们的这个组件可以设置大小,边框粗细,进度条颜色,和后面要多久从0呈现出进度值的动画时长。至于计算属性,会在后面绘制svg的时候,根据注释一一对应不难看出来目的。
2.结构与样式
其实这个很简单就是用svg写两个圆环,第一作为灰色底圆,第二个就是我们的进度条了,设置好大小圆心半径边框色,而且我们要把填充色变为同名,都写完了剩下两项stroke-dasharray和stroke-dashoffset,相信大家都会猜的到了,svg进度条变化核心就是这两个属性,刚刚计算属性也算出来了,分别就是圆环的周长和当前进度的长度。我们利用当前进度值来计算百分比占当前的长度,实现环形进度条的变化,就是这么简单。
然后我们还要写一丢丢css,而且是必须写,因为svg圆环不是从我们认为的0度开始,而是偏移了90度。

所以我们要用css再给他转过90度来!
.circle {
transform: rotate(-90deg);
}然后我们顺便写好文字和主框的一些样式。
.circle-main-box {
position: relative;
display: block;
margin: 0 auto;
}
.count-num {
width: 100px;
height: 100px;
position: absolute;
left: 50%;
top: 50%;
margin-left: -50px;
margin-top: -50px;
align-items: center;
justify-content: center;
display: flex;
font-family: fantasy;
font-size: 30px;
color: #333;
user-select: none;
}
这样我们就得到了一个静态的环形进度条了。
3.动画与使用
基本
文件
流程
错误
SQL
调试
- 请求信息 : 2026-06-03 12:07:53 HTTP/1.1 GET : /article/jcojoh.html
- 运行时间 : 3.0234s ( Load:0.0066s Init:2.4158s Exec:0.5919s Template:0.0092s )
- 吞吐率 : 0.33req/s
- 内存开销 : 2,245.30 kb
- 查询信息 : 12 queries 5 writes
- 文件加载 : 36
- 缓存信息 : 0 gets 0 writes
- 配置加载 : 130
- 会话信息 : SESSION_ID=3ganro9lito9qm65n87qrin7t4
- /www/wwwroot/tsicrk.com/index.php ( 1.09 KB )
- /www/wwwroot/tsicrk.com/ThinkPHP/ThinkPHP.php ( 4.61 KB )
- /www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Think.class.php ( 12.26 KB )
- /www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Storage.class.php ( 1.37 KB )
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- /www/wwwroot/tsicrk.com/ThinkPHP/Mode/common.php ( 2.82 KB )
- /www/wwwroot/tsicrk.com/ThinkPHP/Common/functions.php ( 53.56 KB )
- /www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Hook.class.php ( 4.01 KB )
- /www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/App.class.php ( 13.49 KB )
- /www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Dispatcher.class.php ( 14.79 KB )
- /www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Route.class.php ( 13.36 KB )
- /www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Controller.class.php ( 11.23 KB )
- /www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/View.class.php ( 7.59 KB )
- /www/wwwroot/tsicrk.com/ThinkPHP/Library/Behavior/BuildLiteBehavior.class.php ( 3.68 KB )
- /www/wwwroot/tsicrk.com/ThinkPHP/Library/Behavior/ParseTemplateBehavior.class.php ( 3.88 KB )
- /www/wwwroot/tsicrk.com/ThinkPHP/Library/Behavior/ContentReplaceBehavior.class.php ( 1.91 KB )
- /www/wwwroot/tsicrk.com/ThinkPHP/Conf/convention.php ( 11.15 KB )
- /www/wwwroot/tsicrk.com/App/Common/Conf/config.php ( 2.14 KB )
- /www/wwwroot/tsicrk.com/ThinkPHP/Lang/zh-cn.php ( 2.55 KB )
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- /www/wwwroot/tsicrk.com/ThinkPHP/Library/Behavior/ReadHtmlCacheBehavior.class.php ( 5.62 KB )
- /www/wwwroot/tsicrk.com/App/Home/Controller/ArticleController.class.php ( 6.02 KB )
- /www/wwwroot/tsicrk.com/App/Home/Controller/CommController.class.php ( 1.60 KB )
- /www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Model.class.php ( 60.11 KB )
- /www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Db.class.php ( 32.43 KB )
- /www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Db/Driver/Pdo.class.php ( 16.74 KB )
- /www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Cache.class.php ( 3.83 KB )
- /www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Cache/Driver/File.class.php ( 5.87 KB )
- /www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Template.class.php ( 28.16 KB )
- /www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Template/TagLib/Cx.class.php ( 22.40 KB )
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- /www/wwwroot/tsicrk.com/App/Runtime/Cache/Home/7540f392f42b28b481b30614275e4e55.php ( 17.71 KB )
- /www/wwwroot/tsicrk.com/ThinkPHP/Library/Behavior/WriteHtmlCacheBehavior.class.php ( 0.97 KB )
- /www/wwwroot/tsicrk.com/ThinkPHP/Library/Behavior/ShowPageTraceBehavior.class.php ( 5.24 KB )
- [ app_init ] --START--
- Run Behavior\BuildLiteBehavior [ RunTime:0.000005s ]
- [ app_init ] --END-- [ RunTime:0.000032s ]
- [ app_begin ] --START--
- Run Behavior\ReadHtmlCacheBehavior [ RunTime:0.000290s ]
- [ app_begin ] --END-- [ RunTime:0.000314s ]
- [ view_parse ] --START--
- [ template_filter ] --START--
- Run Behavior\ContentReplaceBehavior [ RunTime:0.000056s ]
- [ template_filter ] --END-- [ RunTime:0.000080s ]
- Run Behavior\ParseTemplateBehavior [ RunTime:0.006288s ]
- [ view_parse ] --END-- [ RunTime:0.006314s ]
- [ view_filter ] --START--
- Run Behavior\WriteHtmlCacheBehavior [ RunTime:0.000159s ]
- [ view_filter ] --END-- [ RunTime:0.000174s ]
- [ app_end ] --START--
- 1064:You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ') LIMIT 1' at line 1
[ SQL语句 ] : SELECT `id`,`pid`,`navname` FROM `cx_nav` WHERE ( id= ) LIMIT 1
- 1064:You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ') LIMIT 1' at line 1
[ SQL语句 ] : SELECT `id`,`navname` FROM `cx_nav` WHERE ( id= ) LIMIT 1
- 1064:You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ')' at line 1
[ SQL语句 ] : SELECT `id`,`navname` FROM `cx_nav` WHERE ( pid= )
- [8] Undefined index: pid /www/wwwroot/tsicrk.com/App/Home/Controller/ArticleController.class.php 第 47 行.
- [8] Undefined index: db_host /www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Db.class.php 第 120 行.
- [8] Undefined index: db_port /www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Db.class.php 第 121 行.
- [8] Undefined index: db_name /www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Db.class.php 第 122 行.

3.0234s
