添加声音

src/pages/first-try.vue

@@ -126,6 +126,9 @@ const nextStep = async () => {
     scores.value = [];
     step.value = 4;
     start.value = true;
+    setTimeout(() => {
+      uni.$emit("play-sound", "请开始射击");
+    }, 300);
   } else if (step.value === 5) {
     uni.navigateBack({
       delta: 1,