左右滚动js代码

以下是一个实现左右滚动的简单 JavaScript 示例代码：

<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <style>
    #scrollContainer {
      width: 300px;
      overflow: hidden;
      white-space: nowrap;
    }

   .scrollItem {
      display: inline-block;
      width: 100px;
      height: 100px;
      background-color: lightblue;
      margin-right: 10px;
    }
  </style>
</head>

<body>
  <div id="scrollContainer">
    <div class="scrollItem">1</div>
    <div class="scrollItem">2</div>
    <div class="scrollItem">3</div>
    <div class="scrollItem">4</div>
    <div class="scrollItem">5</div>
  </div>

  <button onclick="scrollLeft()">向左滚动</button>
  <button onclick="scrollRight()">向右滚动</button>

  <script>
    const container = document.getElementById('scrollContainer');
    const containerWidth = container.offsetWidth;
    let scrollPos = 0;

    function scrollLeft() {
      scrollPos -= 50;
      if (scrollPos < - (container.scrollWidth - containerWidth)) {
        scrollPos = - (container.scrollWidth - containerWidth);
      }
      container.style.transform = `translateX(${scrollPos}px)`;
    }

    function scrollRight() {
      scrollPos += 50;
      if (scrollPos > 0) {
        scrollPos = 0;
      }
      container.style.transform = `translateX(${scrollPos}px)`;
    }
  </script>
</body>

</html>

基础概念：