Css 实现半圆进度条展示功能

一、方案一、使用border方式处理

css

  .block {
            width: 200px;
            height: 200px;
            border-left: 10px solid red;
            border-top: 10px solid red;
            border-right: 10px solid gray;
            border-bottom: 10px solid gray;
            border-radius: 50%;
            box-sizing: border-box;
            position: absolute;
            top: 50%;
            transition: all ease 0.8s;
        }

        .blockOut {
            width: 200px;
            height: 200px;
            background: #ddd;
            position: relative;
            overflow: hidden;
        }

        .block.rotate1 {
            transform: rotate(-45deg);
        }

        .text {
            text-align: center;
            top: 75%;
            position: absolute;
            width: 100%;
        }

 

html

    <div class="blockOut">
        <div class="block rotate1"></div>
        <div class="text">
            50%
        </div>
    </div>

js

var isStart = true;
$(window).click(function () {
    if (isStart) {
        $('.block').css({
            'transform': 'rotate(45deg)'
        });
    }
    else {
        $('.block').css({
            'transform': 'rotate(-45deg)'
        });
    }
    isStart=!isStart;
});

 

二、方案二

待完善...

 

 

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