双屏投屏怎么用

{"moduleinfo":{"card_count":[{"count_phone":1,"count":1}],"search_count":[{"count_phone":6,"count":6}]},"card":[{"des":"满足办公演示需求，支持跨区域演示及双屏投屏，为企业节省差旅成本。利用声波技术，近场感应投屏码，无需任何输入操作，一键快速发起投屏，极大提高操作效率。","link1":"https://www.aliyun.com/product/cd","link":"https://www.aliyun.com/product/cd","icon":"https://img.alicdn.com/tfs/TB1UX8wc7xz61VjSZFrXXXeLFXa-200-200.png","btn2":"立即咨询","tip":"<a href=\"https://linkmarket.aliyun.com/demand \" target=\"_blank\"> 需求广场 <a href=\"https://linkmarket.aliyun.com/introduce?spm=a2c3t.11219539.sr_search_result.2.554251e7z3lNeJ&supplierNo=302550543589\" target=\"_blank\">IoT心选店","btn1":"方案详情","link2":"https://page.aliyun.com/form/act14762550/index.htm","title":"云投屏"}],"search":[{"txt":"其他方案咨询","link":"https://page.aliyun.com/form/act14762550/index.htm"},{"txt":"应用中心","link":"https://linkmarket.aliyun.com/pp/application"},{"txt":"AliOS Things","link":"https://iot.aliyun.com/products/aliosthings"},{"txt":"设备接入服务","link":"https://www.aliyun.com/product/iot-deviceconnect"},{"txt":"IoT Studio","link":"https://iot.aliyun.com/products/linkdevelop"},{"txt":"阿里云IoT","link":"https://iot.aliyun.com"}],"countinfo":{"search":{"length_pc":0,"length":0},"card":{"length_pc":0,"length":0}}}

{"$env":{"JSON":{}},"$page":{"env":"production"},"$context":{"moduleinfo":{"card_count":[{"count_phone":1,"count":1}],"search_count":[{"count_phone":6,"count":6}]},"card":[{"des":"满足办公演示需求，支持跨区域演示及双屏投屏，为企业节省差旅成本。利用声波技术，近场感应投屏码，无需任何输入操作，一键快速发起投屏，极大提高操作效率。","link1":"https://www.aliyun.com/product/cd","link":"https://www.aliyun.com/product/cd","icon":"https://img.alicdn.com/tfs/TB1UX8wc7xz61VjSZFrXXXeLFXa-200-200.png","btn2":"立即咨询","tip":"<a href=\"https://linkmarket.aliyun.com/demand \" target=\"_blank\"> 需求广场 <a href=\"https://linkmarket.aliyun.com/introduce?spm=a2c3t.11219539.sr_search_result.2.554251e7z3lNeJ&supplierNo=302550543589\" target=\"_blank\">IoT心选店","btn1":"方案详情","link2":"https://page.aliyun.com/form/act14762550/index.htm","title":"云投屏"}],"search":[{"txt":"其他方案咨询","link":"https://page.aliyun.com/form/act14762550/index.htm"},{"txt":"应用中心","link":"https://linkmarket.aliyun.com/pp/application"},{"txt":"AliOS Things","link":"https://iot.aliyun.com/products/aliosthings"},{"txt":"设备接入服务","link":"https://www.aliyun.com/product/iot-deviceconnect"},{"txt":"IoT Studio","link":"https://iot.aliyun.com/products/linkdevelop"},{"txt":"阿里云IoT","link":"https://iot.aliyun.com"}],"countinfo":{"search":{"length_pc":0,"length":0},"card":{"length_pc":0,"length":0}}}}