diff --git a/public/react/src/modules/courses/coursesPublic/modal/CheckCodeModal.js b/public/react/src/modules/courses/coursesPublic/modal/CheckCodeModal.js
index cfc6d1245..d38c0a515 100644
--- a/public/react/src/modules/courses/coursesPublic/modal/CheckCodeModal.js
+++ b/public/react/src/modules/courses/coursesPublic/modal/CheckCodeModal.js
@@ -1,235 +1,235 @@
-import React, { Component } from "react";
-import { Modal, Checkbox, Input, Spin, Select, Divider  } from "antd";
-import axios from 'axios'
-import ModalWrapper from "../../common/ModalWrapper"
-import InfiniteScroll from 'react-infinite-scroller';
-import { ConditionToolTip } from 'educoder'
-const Option = Select.Option;
-const pageCount = 15;
-
-// 代码查重弹框
-class CheckCodeModal extends Component{
-  constructor(props){
-    super(props);
-    this.state={
-      checkBoxValues: [],
-      candidates: [],
-      hasMore: true,
-      loading: false,
-      page: 1
-    }
-  }
-  fetchMemberList = (arg_page) => {
-    const courseId = this.props.match.params.coursesId    
-    const page = arg_page || this.state.page;
-    const { name, school_name } = this.state
-    let url = `/courses/${courseId}/search_teacher_candidate.json`
-    this.setState({ loading: true })
-    axios.post(url, {
-      page: page,
-      limit: pageCount,
-      school_name: school_name || '',
-      name: name || ''
-    })
-    .then((response) => {
-      if (!response.data.candidates || response.data.candidates.length == 0) {
-        this.setState({
-          page,
-          loading: false,
-          hasMore: false,
-        })
-      } else {
-        this.setState({
-          candidates: page == 1 ? response.data.candidates : this.state.candidates.concat(response.data.candidates),
-          page,
-          loading: false,
-          hasMore: response.data.candidates.length == pageCount
-        })
-      }
-
-    })
-    .catch(function (error) {
-      console.log(error);
-    }); 
-  }
-  componentDidMount() {
-    
-    
-  }
-  fetchOptions = () => {
-    // add_teacher_popup
-    const courseId = this.props.match.params.coursesId    
-    
-    let url = `/courses/${courseId}/add_teacher_popup.json`
-    
-    axios.get(url, {
-    })
-    .then((response) => {
-      if (response.data.graduation_groups) {
-        this.setState({
-          graduation_groups: response.data.graduation_groups
-        })
-      } 
-      if (response.data.course_groups) {
-        this.setState({
-          course_groups: response.data.course_groups
-        })
-      }
-
-    })
-    .catch(function (error) {
-      console.log(error);
-    });
-  }
-  setVisible = (visible) => {
-    if (visible) {
-      this.fetchMemberList()
-      this.fetchOptions()
-    }
-    this.refs.modalWrapper.setVisible(visible)
-    if (visible == false) {
-      this.setState({
-        checkBoxValues: []
-      })
-    }
-  }
-
-  onSendOk = () => {
-    const courseId = this.props.match.params.coursesId   
-    const url = `/courses/${courseId}/add_teacher.json`
-    const params = { 
-      "user_list": this.state.checkBoxValues.map (item => { return { 'user_id': item }}) ,
-      "graduation_group_id": "2",
-      "course_group_id": "820",
-      // "role": ROLE_TEACHER_NUM
-    }
-    const { graduationGroup, courseGroup } = this.state
-    if (graduationGroup) {
-      params.graduation_group_id = graduationGroup
-    }
-    if (courseGroup) {
-      params.course_group_id = courseGroup
-    }
-    axios.post(url, params)
-    .then((response) => {
-      if (response.data.status == 0) {
-        this.setVisible(false)
-        this.props.showNotification('添加成功')
-      }
-    })
-    .catch(function (error) {
-      console.log(error);
-    }); 
-  }
-
-  onOk = () => {
-    this.onSendOk()
-  }
-
-  onCheckBoxChange = (checkBoxValues) => {
-    this.setState({
-      checkBoxValues: checkBoxValues
-    })
-  }
-
-  handleInfiniteOnLoad = () => {
-    this.fetchMemberList(this.state.page + 1)
-  }
-
-  onSearch = () => {
-    this.fetchMemberList(1)
-  }
-  handleGradationGroupChange = (value) => {
-    this.setState({
-      graduationGroup: value
-    })
-  }
-  handleCourseGroupChange = (value) => {
-    this.setState({
-      courseGroup: value
-    })
-  }
-  render(){
-    const { candidates, checkBoxValues, loading, hasMore, name, school_name
-        , graduationGroup, graduation_groups, courseGroup, course_groups } = this.state
-    const { moduleName } = this.props
-    return(
-      <ModalWrapper
-        ref="modalWrapper"
-        width="700px"
-        title={`代码查重`}
-        {...this.props }
-        onOk={this.onOk}
-        className="checkCodeModal"
-      >
-        <style>
-        {`
-        .demo-loading-container {
-          position: absolute;
-          bottom: 93px;
-          width: 82%;
-          text-align: center;
-        }
-        .df {
-          display: flex;
-          align-items: baseline;
-          margin: 12px 0;
-        }
-        .firstLabel {
-          flex: 0 0 60px;
-        }
-        .df span.label {
-          margin-right: 8px;
-          text-align: right;
-          margin-left: 12px;
-        }
-        .df .ant-input-affix-wrapper {
-          width: 32%;
-        }
-
-        .checkCodeModal label.task-hide {
-          width: 100%;
-        }
-        `}
-        </style>
-        
-        <p className="clearfix mb2" style={{ margin: '0px 15px 6px' }}>
-          <Checkbox className="fl" style={{ visibility: 'hidden' }}  ></Checkbox>
-          <span className="fl with25"><label className="task-hide fl" style={{"maxWidth":"208px;"}}>{'分班名称'}</label></span>
-          <span className="fl with25"><label className="task-hide fl" style={{"maxWidth":"208px;"}}>{'有效作品数'}</label></span>
-          <span className="fl with45"><label className="task-hide fl" style={{"maxWidth":"208px;"}}>{'上次查重时间'}</label></span>
-          
-        </p>
-        <div>
-          {/* https://github.com/CassetteRocks/react-infinite-scroller/issues/70 */}
-          <div className="edu-back-skyblue padding10-15" style={{"height":"300px", overflowY: "scroll", overflowAnchor: 'none' }}>
-              <Checkbox.Group style={{ width: '100%' }} onChange={this.onCheckBoxChange} value={checkBoxValues}>
-
-                { candidates && candidates.map( candidate => {
-                  return (
-                    <p className="clearfix mb7" key={candidate.id}>
-                      <Checkbox className="fl" value={candidate.id} ></Checkbox>
-                      <span className="fl with25">
-                        <ConditionToolTip title={candidate.name} condition={candidate.name && candidate.name.length > 12 }>
-                          <label className="task-hide fl" style={{"maxWidth":"208px;"}}>{candidate.name}</label>
-                        </ConditionToolTip>
-                      </span>
-                      <span className="fl with25">
-                        <ConditionToolTip title={candidate.nickname} condition={candidate.nickname && candidate.nickname.length > 12 }>
-                          <label className="task-hide fl" style={{"maxWidth":"208px;"}}>{candidate.nickname}</label>
-                        </ConditionToolTip>
-                      </span>
-                      <span className="fl with45"><label className="task-hide fl" style={{"maxWidth":"208px;"}}>{candidate.school_name}</label></span>
-                      
-                    </p>
-                  )
-                }) }
-              </Checkbox.Group>
-              
-          </div>
-        </div>
-      </ModalWrapper>
-    )
-  }
-}
-export default CheckCodeModal;
+import React, { Component } from "react";
+import { Modal, Checkbox, Input, Spin, Select, Divider  } from "antd";
+import axios from 'axios'
+import ModalWrapper from "../../common/ModalWrapper"
+import InfiniteScroll from 'react-infinite-scroller';
+import { ConditionToolTip } from 'educoder'
+const Option = Select.Option;
+const pageCount = 15;
+
+// 代码查重弹框
+class CheckCodeModal extends Component{
+  constructor(props){
+    super(props);
+    this.state={
+      checkBoxValues: [],
+      candidates: [],
+      hasMore: true,
+      loading: false,
+      page: 1
+    }
+  }
+  fetchMemberList = (arg_page) => {
+    const courseId = this.props.match.params.coursesId    
+    const page = arg_page || this.state.page;
+    const { name, school_name } = this.state
+    let url = `/courses/${courseId}/search_teacher_candidate.json`
+    this.setState({ loading: true })
+    axios.post(url, {
+      page: page,
+      limit: pageCount,
+      school_name: school_name || '',
+      name: name || ''
+    })
+    .then((response) => {
+      if (!response.data.candidates || response.data.candidates.length == 0) {
+        this.setState({
+          page,
+          loading: false,
+          hasMore: false,
+        })
+      } else {
+        this.setState({
+          candidates: page == 1 ? response.data.candidates : this.state.candidates.concat(response.data.candidates),
+          page,
+          loading: false,
+          hasMore: response.data.candidates.length == pageCount
+        })
+      }
+
+    })
+    .catch(function (error) {
+      console.log(error);
+    }); 
+  }
+  componentDidMount() {
+    
+    
+  }
+  fetchOptions = () => {
+    // add_teacher_popup
+    const courseId = this.props.match.params.coursesId    
+    
+    let url = `/courses/${courseId}/add_teacher_popup.json`
+    
+    axios.get(url, {
+    })
+    .then((response) => {
+      if (response.data.graduation_groups) {
+        this.setState({
+          graduation_groups: response.data.graduation_groups
+        })
+      } 
+      if (response.data.course_groups) {
+        this.setState({
+          course_groups: response.data.course_groups
+        })
+      }
+
+    })
+    .catch(function (error) {
+      console.log(error);
+    });
+  }
+  setVisible = (visible) => {
+    if (visible) {
+      this.fetchMemberList()
+      this.fetchOptions()
+    }
+    this.refs.modalWrapper.setVisible(visible)
+    if (visible == false) {
+      this.setState({
+        checkBoxValues: []
+      })
+    }
+  }
+
+  onSendOk = () => {
+    const courseId = this.props.match.params.coursesId   
+    const url = `/courses/${courseId}/add_teacher.json`
+    const params = { 
+      "user_list": this.state.checkBoxValues.map (item => { return { 'user_id': item }}) ,
+      "graduation_group_id": "2",
+      "course_group_id": "820",
+      // "role": ROLE_TEACHER_NUM
+    }
+    const { graduationGroup, courseGroup } = this.state
+    if (graduationGroup) {
+      params.graduation_group_id = graduationGroup
+    }
+    if (courseGroup) {
+      params.course_group_id = courseGroup
+    }
+    axios.post(url, params)
+    .then((response) => {
+      if (response.data.status == 0) {
+        this.setVisible(false)
+        this.props.showNotification('添加成功')
+      }
+    })
+    .catch(function (error) {
+      console.log(error);
+    }); 
+  }
+
+  onOk = () => {
+    this.onSendOk()
+  }
+
+  onCheckBoxChange = (checkBoxValues) => {
+    this.setState({
+      checkBoxValues: checkBoxValues
+    })
+  }
+
+  handleInfiniteOnLoad = () => {
+    this.fetchMemberList(this.state.page + 1)
+  }
+
+  onSearch = () => {
+    this.fetchMemberList(1)
+  }
+  handleGradationGroupChange = (value) => {
+    this.setState({
+      graduationGroup: value
+    })
+  }
+  handleCourseGroupChange = (value) => {
+    this.setState({
+      courseGroup: value
+    })
+  }
+  render(){
+    const { candidates, checkBoxValues, loading, hasMore, name, school_name
+        , graduationGroup, graduation_groups, courseGroup, course_groups } = this.state
+    const { moduleName } = this.props
+    return(
+      <ModalWrapper
+        ref="modalWrapper"
+        width="700px"
+        title={`代码查重`}
+        {...this.props }
+        onOk={this.onOk}
+        className="checkCodeModal"
+      >
+        <style>
+        {`
+        .demo-loading-container {
+          position: absolute;
+          bottom: 93px;
+          width: 82%;
+          text-align: center;
+        }
+        .df {
+          display: flex;
+          align-items: baseline;
+          margin: 12px 0;
+        }
+        .firstLabel {
+          flex: 0 0 60px;
+        }
+        .df span.label {
+          margin-right: 8px;
+          text-align: right;
+          margin-left: 12px;
+        }
+        .df .ant-input-affix-wrapper {
+          width: 32%;
+        }
+
+        .checkCodeModal label.task-hide {
+          width: 100%;
+        }
+        `}
+        </style>
+        
+        <p className="clearfix mb2" style={{ margin: '0px 15px 6px' }}>
+          <Checkbox className="fl" style={{ visibility: 'hidden' }}  ></Checkbox>
+          <span className="fl with25"><label className="task-hide fl" style={{"maxWidth":"208px;"}}>{'分班名称'}</label></span>
+          <span className="fl with25"><label className="task-hide fl" style={{"maxWidth":"208px;"}}>{'有效作品数'}</label></span>
+          <span className="fl with45"><label className="task-hide fl" style={{"maxWidth":"208px;"}}>{'上次查重时间'}</label></span>
+          
+        </p>
+        <div>
+          {/* https://github.com/CassetteRocks/react-infinite-scroller/issues/70 */}
+          <div className="edu-back-skyblue padding10-15" style={{"height":"300px", overflowY: "scroll", overflowAnchor: 'none' }}>
+              <Checkbox.Group style={{ width: '100%' }} onChange={this.onCheckBoxChange} value={checkBoxValues}>
+
+                { candidates && candidates.map( candidate => {
+                  return (
+                    <p className="clearfix mb7" key={candidate.id}>
+                      <Checkbox className="fl" value={candidate.id} ></Checkbox>
+                      <span className="fl with25">
+                        <ConditionToolTip title={candidate.name} condition={candidate.name && candidate.name.length > 12 }>
+                          <label className="task-hide fl" style={{"maxWidth":"208px;"}}>{candidate.name}</label>
+                        </ConditionToolTip>
+                      </span>
+                      <span className="fl with25">
+                        <ConditionToolTip title={candidate.nickname} condition={candidate.nickname && candidate.nickname.length > 12 }>
+                          <label className="task-hide fl" style={{"maxWidth":"208px;"}}>{candidate.nickname}</label>
+                        </ConditionToolTip>
+                      </span>
+                      <span className="fl with45"><label className="task-hide fl" style={{"maxWidth":"208px;"}}>{candidate.school_name}</label></span>
+                      
+                    </p>
+                  )
+                }) }
+              </Checkbox.Group>
+              
+          </div>
+        </div>
+      </ModalWrapper>
+    )
+  }
+}
+export default CheckCodeModal;
diff --git a/public/react/src/modules/courses/shixunHomework/Shixunworkdetails/ShixunWorkModal.js b/public/react/src/modules/courses/shixunHomework/Shixunworkdetails/ShixunWorkModal.js
index a1dd68ad0..55f44d971 100644
--- a/public/react/src/modules/courses/shixunHomework/Shixunworkdetails/ShixunWorkModal.js
+++ b/public/react/src/modules/courses/shixunHomework/Shixunworkdetails/ShixunWorkModal.js
@@ -154,10 +154,10 @@ class ShixunWorkModal extends Component{
 			this.props.showNotification(`请先选择分班`);
 			return
 		}
-		if(group_ids&&group_ids.length < 2){
-			this.props.showNotification(`有效作品数少于2个，无法查重`);
-			return
-		}
+		// if(group_ids&&group_ids.length < 2){
+		// 	this.props.showNotification(`有效作品数少于2个，无法查重`);
+		// 	return
+		// }
 
 		let url="/homework_commons/"+this.props.match.params.homeworkid+"/homework_code_repeat.json";
 		axios.post(url, {