feat: 节拍指针位置修改

src/helpers/metronome.ts

@@ -434,7 +434,7 @@ class Metronome {
 					if (j == 0) {
 						currentIdx = 0
 					} else {
-						beatNum += Number(measure.CompoundTempo.split('+')[j]);
+						beatNum += CompoundTempoArr[j];
 						currentIdx = beatNum
 					}
 					if (measure.stepList[currentIdx]) {