<div id="line" class="w-2 cursor-move hidden md4:block"onMousedown={hnadleMouseDown}>
</div>

    const hnadleMouseDown = (evt: MouseEvent) => {
      /* 獲取起始點位，并存儲 */
      let { pageX, pageY } = evt;
      basePosition.pageX = pageX;
      basePosition.pageY = pageY;
      /* 監(jiān)聽鼠標的移動事件 */
      document.addEventListener("mousemove", handleMouseMove);
      document.addEventListener("mouseup", handleMouseUp);
    };
    const handleMouseMove = evt => {
      /* 阻止瀏覽器默認事件，防止觸發(fā)瀏覽器的手勢功能 */
      evt.preventDefault();
      /* 設置定時器，防止dom多次回流 */
      clearTimeout(timer.value);
      timer.value = setTimeout(() => {
        let { pageX } = evt;
        const baseDiv = document.querySelector(".right-border-shadow");
        /* 處理寬度，是否處于最大值/最小值之間 */
        let baseWidth: Number | undefined =
          Number(baseDiv?.clientWidth) + (pageX - basePosition.pageX);
        baseWidth =
          baseWidth > Number(props?.maxWidth) ? props.maxWidth : baseWidth;
        baseWidth =
          Number(baseWidth) < Number(props?.minWidth)
            ? props.minWidth
            : baseWidth;
        baseDiv?.setAttribute("style", `width:${baseWidth}px`);
        /* emit寬度改變的事件 */
        ctx.emit("drugend");
        /* 存儲到store */
        setStore(baseWidth);
      }, 50);
    };
    const handleMouseUp = evt => {
      /* 結束拖動之后，取消事件監(jiān)聽，并emit出最終寬度 */
      const width = document.querySelector(".right-border-shadow")?.clientWidth;
      document.removeEventListener("mousemove", handleMouseMove);
      document.removeEventListener("mouseup", handleMouseUp);
      ctx.emit("drugend", width);
    };

style={`width:${
            store.get("split-width")
              ? store.get("split-width")
              : props.minWidth
              ? props.minWidth
              : 384
          }px`}

nextTick(() => {
        ctx.emit("load", ctx);
        MutationObserver = window.MutationObserver;
        if (MutationObserver) {
          /* 監(jiān)聽瀏覽器的窗口變化，在部分情況下需要這個api */
          mo = new MutationObserver(function() {
            const __wm = document.querySelector("#rezie-id");
            // 只在__wm元素變動才重新調用 __canvasWM
            if (!__wm) {
              // 避免一直觸發(fā)
              mo.disconnect();
              mo = null;
              ctx.emit("resize");
            }
          });
          mo.observe(document.querySelector("#rezie-id"), {
            attributes: true,
            subtree: true,
            childList: true,
          });
        }
      });