生成图片

src/page-instrument/view-product-img/index.tsx

@@ -51,15 +51,17 @@ export default defineComponent({
 
 		/** 渲染完成 */
 		const handleRendered = async () => {
+			
+			detailData.product[detailData.step].state = true;
+			detailData.product[detailData.step].base64 = await downPng();
+
 			try {
 				console.log(JSON.parse(JSON.stringify(detailData.product)), detailData.step);
 			} catch (error) {}
-			detailData.product[detailData.step].state = true;
-			detailData.product[detailData.step].base64 = await downPng();
 
 			detailData.step += 1;
 
-			if (detailData.step !== detailData.product.length - 1) {
+			if (detailData.step !== detailData.product.length) {
 				//课堂乐器,默认简谱
 				state.musicRenderType = detailData.product[detailData.step].type;
 				nextTick(() => {