diff --git a/public/react/src/AppConfig.js b/public/react/src/AppConfig.js
index 3c150c90c..197aee940 100644
--- a/public/react/src/AppConfig.js
+++ b/public/react/src/AppConfig.js
@@ -21,16 +21,16 @@ let hashTimeout
 
 // TODO 开发期多个身份切换
 let debugType =""
-// if (isDev) {
-//   const _search = window.location.search;
-//   let parsed = {};
-//   if (_search) {
-//     parsed = queryString.parse(_search);
-//   }
-//   debugType = window.location.search.indexOf('debug=t') != -1 ? 'teacher' :
-//     window.location.search.indexOf('debug=s') != -1 ? 'student' :
-//       window.location.search.indexOf('debug=a') != -1 ? 'admin' : parsed.debug || 'admin'
-// }
+if (isDev) {
+  const _search = window.location.search;
+  let parsed = {};
+  if (_search) {
+    parsed = queryString.parse(_search);
+  }
+  debugType = window.location.search.indexOf('debug=t') != -1 ? 'teacher' :
+    window.location.search.indexOf('debug=s') != -1 ? 'student' :
+      window.location.search.indexOf('debug=a') != -1 ? 'admin' : parsed.debug || 'admin'
+}
 window._debugType = debugType;
 export function initAxiosInterceptors(props) {
     initOnlineOfflineListener()
@@ -84,9 +84,9 @@ export function initAxiosInterceptors(props) {
                     }
                     config.url = `${proxy}${url}`;
                     if (config.url.indexOf('?') == -1) {
-                        config.url = `${config.url}?debug=${debugType}`;
+                        config.url = `${config.url}?debug=${'teacher'}`;
                     } else {
-                        config.url = `${config.url}&debug=${debugType}`;
+                        config.url = `${config.url}&debug=${'teacher'}`;
                     }
                 } else {
                     // 加api前缀
diff --git a/public/react/src/modules/courses/busyWork/CommonWorkSetting.js b/public/react/src/modules/courses/busyWork/CommonWorkSetting.js
index 9aa31acb1..f0273f9b8 100644
--- a/public/react/src/modules/courses/busyWork/CommonWorkSetting.js
+++ b/public/react/src/modules/courses/busyWork/CommonWorkSetting.js
@@ -1217,7 +1217,7 @@ class CommonWorkSetting extends Component{
             {/* 开启时间 */}
             <div className={"h20 mb30 ml60"}>
               <span>开启时间：</span>
-              <Tooltip placement="bottom" title={this.props.isSuperAdmin()?"":starttimetype===true?this.props.isAdmin()?"发布时间已过，则不能修改":"":""}>
+              <Tooltip placement="bottom" title={starttimetype===true?this.props.isAdmin()?"发布时间已过，则不能修改":"":""}>
               <ConditionToolTip condition={moment(init_evaluation_start) < this.fetchMoment} title={this.props.isAdmin()?"时间已过，不能再修改":""}>
               <span>
                   <DatePicker
@@ -1290,7 +1290,7 @@ class CommonWorkSetting extends Component{
             {/* 匿评数量 */}
             <div className={"h20 mb30 ml60"}>
               <span>匿评数量：</span>
-              <Tooltip placement="bottom" title={this.props.isSuperAdmin()?"":starttimetype===true?this.props.isAdmin()?"发布时间已过，则不能修改":"":""}>
+              <Tooltip placement="bottom" title={starttimetype===true?this.props.isAdmin()?"发布时间已过，则不能修改":"":""}>
               <span>
                 <Input type="number" className="mr10" style={{width:"100px" }} value={evaluation_num}  onInput={this.evaluation_num_change}
                   disabled={anonymous_comment && !noAuth? false : true} min={0} max={100}
@@ -1303,7 +1303,7 @@ class CommonWorkSetting extends Component{
 
             <div className={"h20 mb30 ml60"}>
               <span>缺评扣分：</span>
-              <Tooltip placement="bottom" title={this.props.isSuperAdmin()?"":starttimetype===true?this.props.isAdmin()?"发布时间已过，则不能修改":"":""}>
+              <Tooltip placement="bottom" title={starttimetype===true?this.props.isAdmin()?"发布时间已过，则不能修改":"":""}>
               <span>
                 <Input type="number" className="mr10" style={{width:"100px" }} value={absence_penalty}  onInput={this.absence_penalty_change}
                   disabled={ anonymous_comment && !noAuth ? false : true} min={0} max={100}
@@ -1378,7 +1378,7 @@ class CommonWorkSetting extends Component{
             {/* 违规匿评扣分： */}
             <div className={"h20 mb30 ml60"}>
               <span>违规匿评扣分：</span>
-              <Tooltip placement="bottom" title={this.props.isSuperAdmin()?"":starttimetype===true?this.props.isAdmin()?"发布时间已过，则不能修改":"":""}>
+              <Tooltip placement="bottom" title={starttimetype===true?this.props.isAdmin()?"发布时间已过，则不能修改":"":""}>
               <span>
                 <Input type="number" className="mr10" style={{width:"100px" }} value={appeal_penalty}  onInput={this.appeal_penalty_change}
                   disabled={ anonymous_appeal && !noAuth ? false : true} min={0} max={100}
@@ -1400,7 +1400,7 @@ class CommonWorkSetting extends Component{
             </div>
             
             <div className={"mb30 ml60"}>
-              <Tooltip placement="bottom" title={this.props.isSuperAdmin()?"":starttimetype===true?this.props.isAdmin()?"发布时间已过，则不能修改":"":""}>
+              <Tooltip placement="bottom" title={starttimetype===true?this.props.isAdmin()?"发布时间已过，则不能修改":"":""}>
               <RadioGroup onChange={this.ta_mode_change} value={ta_mode}>
                 <Radio style={radioStyle} value={1} disabled={noAuth}>
                   普通模式<span className={"font-14 color-grey-9 ml10"}>（选中，则取各助教最终评分的平均分）</span>
diff --git a/public/react/src/modules/courses/coursesDetail/CoursesBanner.js b/public/react/src/modules/courses/coursesDetail/CoursesBanner.js
index 8173b226a..b8e906b77 100644
--- a/public/react/src/modules/courses/coursesDetail/CoursesBanner.js
+++ b/public/react/src/modules/courses/coursesDetail/CoursesBanner.js
@@ -162,17 +162,7 @@ class CoursesBanner extends Component {
 
     return json;
   };
-    showeditmenu = () => {
-        this.setState({
-            show: true,
-        })
-    }
 
-    hideeditmenu = () => {
-        this.setState({
-            show: false
-        })
-    }
 
     tojoinclass = (val) => {
 			if(this.props.current_user&&this.props.current_user.profile_completed===false){
@@ -201,13 +191,14 @@ class CoursesBanner extends Component {
          yslJointhe:true
        })
     }
-    showActionPoll=(i,s,ss)=>{
+    showActionPoll=(i,s,ss,trs)=>{
         this.setState({
             modalsType: true,
             modalsTopval: s,
             loadtype: false,
             metype: i,
             modalsBottomval: ss,
+					  modalstrsvalue:trs,
         })
     }
     ActionPoll = (i) => {
@@ -248,9 +239,10 @@ class CoursesBanner extends Component {
             }
             }
         if (i ===5) {
-            s = "复制”功能将会为您创建一个新的课堂旧课堂的作业、资源、试卷";
-            ss = "都将被复制到新的课堂里面请问是否继续？？";
-            this.showActionPoll(i,s,ss)
+            s = `“复制”功能将会为您创建一个新的课堂`;
+            ss = "请问是否继续？";
+            let mid="旧课堂的作业、资源、试卷都将被复制到新的课堂里面 ";
+            this.showActionPoll(i,s,ss,mid)
         }
 
     }
@@ -261,7 +253,8 @@ class CoursesBanner extends Component {
             modalsTopval: "",
             modalsBottomval:"",
             loadtype: false,
-            antIcon:false
+            antIcon:false,
+					  modalstrsvalue:undefined
         })
 
     }
@@ -483,7 +476,7 @@ class CoursesBanner extends Component {
 
 
     render() {
-        let { Addcoursestypes, coursedata,excellent, modalsType, modalsTopval, loadtype,modalsBottomval,antIcon,is_guide,AccountProfiletype} = this.state;
+        let { Addcoursestypes, coursedata,excellent, modalsType, modalsTopval, loadtype,modalsBottomval,antIcon,is_guide,AccountProfiletype,modalstrsvalue} = this.state;
         const isCourseEnd = this.props.isCourseEnd()
 			 document.title=coursedata===undefined || coursedata.status===401 || coursedata.status===407?"":coursedata.name;
         return (
@@ -513,6 +506,7 @@ class CoursesBanner extends Component {
                   modalsTopval={modalsTopval}
                   loadtype={loadtype}
                   modalsBottomval={modalsBottomval}
+									modalsMidval={modalstrsvalue}
                   modalCancel={this.modalCancel}
                   modalSave={this.ModalAction}
                   antIcon={antIcon}
diff --git a/public/react/src/modules/courses/coursesPublic/SelectSetting.js b/public/react/src/modules/courses/coursesPublic/SelectSetting.js
index 57106600d..f0b1dd884 100644
--- a/public/react/src/modules/courses/coursesPublic/SelectSetting.js
+++ b/public/react/src/modules/courses/coursesPublic/SelectSetting.js
@@ -242,7 +242,7 @@ class Selectsetting extends Component{
 	}
 
 	delectcousedelectfils=(id)=>{
-		const url = `/attachments/${id}.json`;
+		const url = `/attachments/${id}.json?type=history`;
 
 		axios.delete(url)
 			.then((response) => {
diff --git a/public/react/src/modules/courses/exercise/Exercisesetting.js b/public/react/src/modules/courses/exercise/Exercisesetting.js
index 42cafc2d6..fc1bea135 100644
--- a/public/react/src/modules/courses/exercise/Exercisesetting.js
+++ b/public/react/src/modules/courses/exercise/Exercisesetting.js
@@ -652,6 +652,7 @@ class Exercisesetting extends Component{
                                             <div className="clearfix"  id={"publishtimeid"}>
                                                 <span className="font-16 mr15 fl mt6">发布时间：</span>
                                                 <div className="fl">
+																									<Tooltip placement="bottom" title={publish_timetype===true?this.props.isAdmin()? "发布时间已过，不能再修改":"":""}>
                                                     <DatePicker
                                                         dropdownClassName="hideDisable"
                                                         placeholder="请选择发布时间"
@@ -666,6 +667,7 @@ class Exercisesetting extends Component{
                                                         value={publish_time && moment(publish_time,"YYYY-MM-DD HH:mm")}
                                                         disabled={ publish_timetype===true?true:!flagPageEdit }
                                                     ></DatePicker>
+																									</Tooltip>
                                                     <p className="color-red lineh-25 clearfix" style={{height:"25px"}}>
                                                         {
                                                             unit_p_tip !="" ? <span className="fl">{unit_p_tip}</span>:""
diff --git a/public/react/src/modules/courses/graduation/tasks/GraduationTaskssetting.js b/public/react/src/modules/courses/graduation/tasks/GraduationTaskssetting.js
index 19980cca5..bab853a13 100644
--- a/public/react/src/modules/courses/graduation/tasks/GraduationTaskssetting.js
+++ b/public/react/src/modules/courses/graduation/tasks/GraduationTaskssetting.js
@@ -1076,7 +1076,7 @@ debugger
 
                   <div className={"mt10 ml30"} >
                     <span>截止时间：</span>
-                    <Tooltip placement="bottom" title={this.props.isSuperAdmin()===true?"":this.props.isAdmin()===true?endtimetype===true?"时间已过，不能再修改":"":""}>
+                    <Tooltip placement="bottom" title={this.props.isAdmin()===true?endtimetype===true?"时间已过，不能再修改":"":""}>
                     <span>
                     <DatePicker
                       showToday={false}
diff --git a/public/react/src/modules/courses/poll/PollDetailTabForth.js b/public/react/src/modules/courses/poll/PollDetailTabForth.js
index 4a8a6f44c..aa9038d9b 100644
--- a/public/react/src/modules/courses/poll/PollDetailTabForth.js
+++ b/public/react/src/modules/courses/poll/PollDetailTabForth.js
@@ -555,7 +555,7 @@ class PollDetailTabForth extends Component{
 											<div className="clearfix mb5">
 												<span className="font-16 mr15 fl mt6">发布时间：</span>
 													<div className="fl">
-														<Tooltip placement="bottom" title={un_change_unified ?this.props.isAdmin()? "发布时间已过，不能再修改":"":""}>
+														<Tooltip placement="bottom" title={un_change_unified == true?this.props.isAdmin()? "发布时间已过，不能再修改":"":""}>
 															<span>
 																<DatePicker
 																	showToday={false}
diff --git a/public/react/src/modules/courses/shixunHomework/Trainingjobsetting.js b/public/react/src/modules/courses/shixunHomework/Trainingjobsetting.js
index 2556a910b..ddda1f81f 100644
--- a/public/react/src/modules/courses/shixunHomework/Trainingjobsetting.js
+++ b/public/react/src/modules/courses/shixunHomework/Trainingjobsetting.js
@@ -2190,7 +2190,7 @@ class Trainingjobsetting extends Component {
                                         <div>
                                             <div className="clearfix mb5 ml15">
                                                 <span className="font-16  fl mt3" style={{color:"#999999"}}>发布时间：</span>
-                                                <Tooltip placement="bottom" title={this.props.isSuperAdmin() ? "" : !flagPageEditstwo === true && publish_timebool === true?this.props.isAdmin()?"发布时间已过，则不能修改":"": ""}>
+                                                <Tooltip placement="bottom" title={!flagPageEditstwo === true && publish_timebool === true?this.props.isAdmin()?"发布时间已过，则不能修改":"":""}>
                                                 <div className="fl yskspickers">
                                                     <DatePicker
                                                         showToday={false}
diff --git a/public/react/src/modules/modals/Modals.js b/public/react/src/modules/modals/Modals.js
index 552e34017..859e54784 100644
--- a/public/react/src/modules/modals/Modals.js
+++ b/public/react/src/modules/modals/Modals.js
@@ -35,6 +35,7 @@ render() {
             <Spin indicator={antIcons} spinning={this.props.antIcon===undefined?false:this.props.antIcon} >
               <div className="task-popup-content">
                 <p className="task-popup-text-center font-16">{this.props.modalsTopval}</p>
+								{this.props.modalsMidval===undefined?"":<p className="task-popup-text-center font-16 mt5">{this.props.modalsMidval}</p>}
                 <p className="task-popup-text-center font-16 mt5">{this.props.modalsBottomval}</p>
                 {this.props.loadtype===true?
                   <div className="clearfix edu-txt-center mt20">