JS怎么用transform实现banner的无限滚动

JS代码

var timeout = null;  window.onload = function () {      var oLeft = document.querySelector('.left');      var oRight = document.querySelector('.right');      var oButton = document.querySelector('.buttons');      var oButtons = document.querySelectorAll('.buttons div');      var oImgs = document.querySelectorAll('.box img');      var imgWidth = oImgs[0].width;      var gIndex = 0;      begainAnimate();      // 绑定左右点击事件      oLeft.onclick = function () {          clearTimeout(timeout);          leftMove();          begainAnimate();      };      oRight.onclick = function () {          clearTimeout(timeout);          rightMove();          begainAnimate();      };      // 绑定数字序号事件      oButton.onclick = function (event) {          clearTimeout(timeout);          var targetEl = event.target;          var nextIndex = (+targetEl.innerText) - 1;          console.log(nextIndex);          rightMove(nextIndex);          begainAnimate();      }      // 默认初始动画朝右边      function begainAnimate() {          clearTimeout(timeout);          timeout = setTimeout(function () {              rightMove();              begainAnimate();          }, 3000);      }      // 向左移动动画      function leftMove() {          var nextIndex = (gIndex - 1 < 0) ? oImgs.length - 1 : gIndex - 1;          animateSteps(nextIndex, -50);      }      // 向右移动动画      function rightMove(nextIndex) {          if (nextIndex == undefined) {              nextIndex = (gIndex + 1 >= oImgs.length) ? 0 : gIndex + 1;          }          animateSteps(nextIndex, 50);      }      // 一次动画      function animateSteps(nextIndex, timestamp) {          var currentImg = oImgs[gIndex];          var nextImg = oImgs[nextIndex];          nextImg.style.zIndex = 10;          var step = 0;          requestAnimationFrame(goStep);          // 走一帧的动画，移动timestamp          function goStep() {              var moveWidth = timestamp * step++;              if (Math.abs(moveWidth) < imgWidth) {                  currentImg.style.transform = `translate(${moveWidth}px)`;                  nextImg.style.transform = `translate(${moveWidth > 0 ? (moveWidth - imgWidth) : (imgWidth + moveWidth)}px)`;                  requestAnimationFrame(goStep);              } else {                  currentImg.style.zIndex = 1;                  currentImg.style.transform = `translate(0px)`;                  nextImg.style.transform = `translate(0px)`;                  oButtons[gIndex].setAttribute('class', '');                  oButtons[nextIndex].setAttribute('class', 'active');                  gIndex = nextIndex;              }          }      }  }  window.onclose = function () {      clearTimeout(timeout);  }

css布局样式

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