let obj = {"bi_id":35052,"ad_position":908,"subject":"\u6843\u5712\u5927\u6eaa\u7b20\u5fa9\u5a01\u65af\u6c40\u5ea6\u5047\u9152\u5e97","img":"https:\/\/picdn.gomaji.com\/uploads\/banner\/1\/52\/35052.jpg","action":"product","link_url":"\/store\/88361?pid=239284&gid=0","event_id":0,"ch_id":2,"city_id":0,"pid":239284,"gid":0,"sid":88361,"cat_id":0,"display_platform":0,"display_pc_ref":0,"top_flag":0,"pos_APP":0} ;
let html = '<a href="' + obj.link_url + '"><img class="d-block w-100" src="' + obj.img + '" alt="' + obj.subject + '"></a>';
document.getElementById('water_Banner_show').innerHTML = html;