细节优化

src/pages/first-try.vue

@@ -77,6 +77,9 @@ const nextStep = async () => {
     scores.value = [];
     await createPractise(total);
     step.value = 4;
+    setTimeout(() => {
+      start.value = true;
+    }, 500);
   } else if (step.value === 5) {
     uni.navigateBack({
       delta: 1,