I want to realize input selected

fields: [ {
label:"课件标题",
name:"title"
},{
label:"课件封面",
name:"imgUrl",
type:"upload"
},{
label:"课件地址",
name:"resourceUrl"
},{
label:"课件介绍",
name:"introDetail"
},{
label:"课件分类",
name:"resourceType",
type:"select",
value:["视频","音频","图文"]
},{
label:"是否有效",
name:"isValid",
type:"select"
},{
label:"主讲人",
name:"speaker"
}]
I can see the input select in the page,but I don't know how to set value in option.The input select is empty!