修复web阅读上下方向键二段跳的问题

modules/web/src/views/BookChapter.vue

@@ -446,6 +446,15 @@ const handleKeyPress = (event) => {
       break;
   }
 };
+
+// 阻止默认滚动事件
+const ignoreKeyPress = (event) => {
+  if (event.key === "ArrowUp" || event.key === "ArrowDown") {
+    event.preventDefault();
+    event.stopPropagation();
+  }
+};
+
 onMounted(() => {
   //获取书籍数据
   let bookUrl = sessionStorage.getItem("bookUrl");
@@ -484,6 +493,7 @@ onMounted(() => {
 
         getContent(chapterIndex, true, chapterPos);
         window.addEventListener("keyup", handleKeyPress);
+        window.addEventListener("keydown", ignoreKeyPress);
         // 兼容Safari < 14
         document.addEventListener("visibilitychange", onVisibilityChange);
         //监听底部加载
@@ -505,6 +515,7 @@ onMounted(() => {
 
 onUnmounted(() => {
   window.removeEventListener("keyup", handleKeyPress);
+  window.removeEventListener("keydown", ignoreKeyPress);
   window.removeEventListener("resize", onResize);
   // 兼容Safari < 14
   document.removeEventListener("visibilitychange", onVisibilityChange);