}

            async function analysis(jigsawInfo) {
                const offsetL = jigsawInfo.front.left - jigsawInfo.back.left;
                const offsetT = jigsawInfo.front.top - jigsawInfo.back.top;

                // 需要先运行一次 src/test/component/DragJigsawTest1 或 src/test/component/DragJigsawTest2 来生成对应的验证码截图
                const [frontCanvas, frontContext] = await createImgCanvas(jigsawInfo.front);
                const [backCanvas, backContext] = await create