fix

public/react/src/modules/courses/Resource/index.js

@@ -827,7 +827,7 @@ class Fileslists extends Component{
 										{this.props.isAdmin()?<WordsBtn style="blue" onClick={()=>this.addDir()} className={"mr30 font-16"}>新建目录</WordsBtn>:""}
                     {this.props.isAdmin()?parseInt(this.props.match.params.main_id)!=parseInt(this.props.coursesids)?<WordsBtn style="blue" onClick={()=>this.editDir(name)} className={"mr30 font-16"}>目录重命名</WordsBtn>:"":""}
 
-                    {this.props.isAdmin()||this.props.isStudent() ?  <WordsBtn style="blue" className="mr30 font-16" onClick={()=>this.addResource()}>选用资源</WordsBtn>:""}
+                    {this.props.isAdmin()||this.props.isStudent() ? this.props.user&&this.props.user.main_site===true? <WordsBtn style="blue" className="mr30 font-16" onClick={()=>this.addResource()}>选用资源</WordsBtn>:"":""}
                     {this.props.isAdmin()||this.props.isStudent() ? <WordsBtn style="blue" className=" font-16" onClick={()=>this.sendResources()}>上传资源</WordsBtn>:""}
                   </React.Fragment>
                 }