Merge branch 'dev_aliyun' of https://bdgit.educoder.net/Hjqreturn/educoder into dev_aliyun

public/react/src/modules/osshackathon/Osshackathon.js

@@ -207,7 +207,7 @@ class Osshackathon extends Component {
 				<div className={"educontent  mb20 persmstyle"} style={{width: "1200px", marginTop: "26px"}}>
 
 					<div className="registrationback"
-							 style={{"background": `url(${getImageUrl(`images/educoder/competitions/tipregistit.jpg`)})`,"height":"360px"}}
+							 style={{"background": `url(${getImageUrl(`images/educoder/competitions/heikesong.jpg`)})`,"height":"360px"}}
 					></div>
 					<Spin spinning={this.state.spinning}>
 					{this.props.user&&this.props.user.admin===true?<Row className={"mt20"}>