JS商品图片局部放大效果代码，适用于电商网站进行商品展示使用，鼠标点击左边小图，右边显示大图，鼠标经过大图，显示图片细节放大效果，点击大图会弹出原图！-JS Picture enlarged effect of the code applicable to the electricity supplier site merchandise display using the mouse to click the left thumbnail, displayed on the right big