css+js实现环形进度条的完整代码

HTML代码：

<div class="progress-wrapper">
  <div class="progress-ring">
    <div class="progress-bar"></div>
  </div>
  <div class="progress-text">
    <span class="progress-percent">0</span>%
  </div>
</div>

CSS代码：

.progress-wrapper {
  position: relative;
  width: 200px;
  height: 200px;
  margin: 0 auto;
}

.progress-ring {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background-color: #e6e6e6;
}

.progress-bar {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  clip: rect(0, 100px, 200px, 0);
  background-color: #ff6b6b;
}

.progress-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 24px;
  font-weight: bold;
  color: #ff6b6b;
}

.progress-percent {
  font-size: 36px;
}

JavaScript代码：

function setProgress(percent) {
  const circle = document.querySelector('.progress-bar');
  const text = document.querySelector('.progress-percent');
  const radius = circle.r.baseVal.value;
  const circumference = 2 * Math.PI * radius;
  const offset = circumference - percent / 100 * circumference;
  
  circle.style.strokeDasharray = `${circumference} ${circumference}`;
  circle.style.strokeDashoffset = offset;
  text.textContent = percent;
}

setProgress(50); // 设置进度为50%

这段代码实现了一个环形进度条，包括HTML、CSS和JavaScript部分。其中，HTML部分定义了进度条的结构，CSS部分定义了进度条和文本的样式，JavaScript部分实现了设置进度的功能。你可以根据需要修改这些代码。