fix

app/admin/view/teaching_knowledge/index.html

@@ -54,7 +54,7 @@
                                 a.push(`<div><a target="_blank" data-iframe="${item}" data-title="查看媒体">查看</a></div>`)
                             }
                         })
-                        return `${a.join('')}`
+                        return `<div>${a.join('')}</div>`
                     }
                 },