fix

src/pc/home/component/the-setting/index.tsx

@@ -92,8 +92,12 @@ export default defineComponent({
 				value: "B",
 			},
 			{
-				label: "BackSpace",
-				value: "删除音符",
+				label: "删除音符",
+				value: "BackSpace",
+			},
+			{
+				label: "撤回",
+				value: "Ctrl + z",
 			},
 		];
 		return () => (

src/pc/home/index.tsx

@@ -1266,6 +1266,7 @@ export default defineComponent({
 				keyDownData.control = true;
 			}
 			if (e.key === "z" && keyDownData.control && !keyDownData.wait) {
+				e.preventDefault();
 				if (data.undoList.length) {
 					abcData.abc = cloneDeep(data.undoList[data.undoList.length - 1]);
 					data.undoList.pop();