fix分数regex

src/features/mark/MarkBoardKeyBoard.vue

@@ -209,6 +209,7 @@ export default defineComponent({
         if (
           !(
             scoreStr.value === "0" ||
+            /^0\.[1-9]\d*$/.test(scoreStr.value) ||
             /^[1-9]\d*$/.test(scoreStr.value) ||
             /^[1-9]\d*\.\d*[1-9]$/.test(scoreStr.value)
           )