缩放
changeBack(setting!.back, setting!.backType, setting!.openCompass, setting!.mapOpen, setting!.mapType, {scale: val, rotate: setting?.rotate!})"
/>
旋转
changeBack(setting!.back, setting!.backType, setting!.openCompass, setting!.mapOpen, setting!.mapType, {scale: setting!.scale!, rotate: val})"
/>