feat: 评测速度倍率

src/pages/detail/runtime.ts

@@ -335,7 +335,7 @@ export const changeSpeed = (speed: number, isSave: boolean = true) => {
   state.speed = speed
   state.playIngSpeed = speed
   // 当前的音符
-  const currentItem: any = detailState.times[state.activeIndex];
+  const currentItem: any = (detailState.sectionStatus && detailState.section.length === 2) ? detailState.section[0] : detailState.times[state.activeIndex];
   state.basePlayRate = currentItem?.measureSpeed ? state.speed / currentItem.measureSpeed : state.speed / detailState.baseSpeed;
   if (!detailState.activeDetail) return
   state.audiosInstance?.setSpeed(state.basePlayRate)