diff --git a/public/react/src/college/College.js b/public/react/src/college/College.js
index bc43252b7..fb116429d 100644
--- a/public/react/src/college/College.js
+++ b/public/react/src/college/College.js
@@ -45,11 +45,13 @@ class College extends Component {
 					align: 'center',
 					className: "edu-txt-center font-14 maxnamewidth340",
 					render: (text, record) => (
-						<span className="maxnamewidth340">
+						<a  className="maxnamewidth340" title={record.teachers} style={{
+							color:'#05101A'
+						}}>
 							{
 								record.teachers
 							}
-        </span>
+        </a >
 					)
 				},
 				{
diff --git a/public/react/src/modules/tpm/NewHeader.js b/public/react/src/modules/tpm/NewHeader.js
index 06369d3d2..84354369c 100644
--- a/public/react/src/modules/tpm/NewHeader.js
+++ b/public/react/src/modules/tpm/NewHeader.js
@@ -1218,7 +1218,7 @@ submittojoinclass=(value)=>{
                 }
                 {
                   this.props.Headertop && this.props.Headertop.laboratory_user &&
-                  <li><a href="/cooperative">后台管理</a></li>
+                  <li><a href={this.props.Headertop.laboratory_admin_url}>后台管理</a></li>
                 }
 
                 <li><a href={`/account/profile`}>账号管理</a></li>
diff --git a/public/react/src/modules/tpm/TPMBanner.js b/public/react/src/modules/tpm/TPMBanner.js
index da48a5b19..cde68f0b6 100644
--- a/public/react/src/modules/tpm/TPMBanner.js
+++ b/public/react/src/modules/tpm/TPMBanner.js
@@ -1016,8 +1016,8 @@ class TPMBanner extends Component {
                   <Popover
                     content={
                        <pre className={"bannerpd201"}>
-                          <div>您编辑完成后，可以马上使用到自</div>
-                          <div className={"wechatcenter mt10"}>己的课堂和实训课程哦</div>
+                          <div>点击发布后，可以马上应用到自</div>
+                          <div className={"wechatcenter mt10"}>己的课堂和课程</div>
                           <div className={"wechatcenter mt15"}><Button  type="primary" onClick={this.openknow} >我知道了</Button></div>
                        </pre>
                     }
diff --git a/public/react/src/modules/tpm/TPMDataset.js b/public/react/src/modules/tpm/TPMDataset.js
index 85ce2006e..55cd8c746 100644
--- a/public/react/src/modules/tpm/TPMDataset.js
+++ b/public/react/src/modules/tpm/TPMDataset.js
@@ -461,7 +461,7 @@ class TPMDataset extends Component {
 		const uploadProps = {
 			width: 600,
 			fileList,
-			multiple: false,
+			multiple: true,
 			//multiple 是否支持多选 查重的时候不能多选 不然弹许多框出来
 			// https://github.com/ant-design/ant-design/issues/15505
 			// showUploadList={false}，然后外部拿到 fileList 数组自行渲染列表。
diff --git a/public/react/src/modules/tpm/shixunchild/Challenges/Challenges.js b/public/react/src/modules/tpm/shixunchild/Challenges/Challenges.js
index 548e7224a..239b46fd8 100644
--- a/public/react/src/modules/tpm/shixunchild/Challenges/Challenges.js
+++ b/public/react/src/modules/tpm/shixunchild/Challenges/Challenges.js
@@ -59,7 +59,7 @@ class Challenges extends Component {
               isopentitletype:"Less",
             })
           }
-
+          this.getjianjiesize()
         }
       }
     }).catch((error) => {
@@ -67,31 +67,54 @@ class Challenges extends Component {
     });
   }
 
+  getjianjiesize=()=>{
+    let {ChallengesDataList}=this.state;
+    let boxoffsetHeigh;
+    let box=document.getElementById("shixunchallengesid");
+
+    if(box){
+      boxoffsetHeigh=box.offsetHeight
+      if(ChallengesDataList === undefined || ChallengesDataList&&ChallengesDataList.description=== ""||ChallengesDataList&&ChallengesDataList.description===null||ChallengesDataList&&ChallengesDataList.description===undefined){
+
+      }else{
+        if(this.state.isopentitletype==="greater"){
+
+        }else{
+          if(boxoffsetHeigh>=300){
+            this.setState({
+              opentitletype:true,
+              isopentitletype:"greater",
+              boxoffsetHeigh:boxoffsetHeigh
+            })
+          }else{
+            this.setState({
+              isopentitletype:"Less",
+              boxoffsetHeigh:boxoffsetHeigh
+            })
+          }
+        }
+
+      }
+
+    }
+  }
+
   componentDidMount() {
-   this.ChallengesList()
+    if(this.state.isopentitletype==="greater"){
+
+    }else {
+      this.ChallengesList()
+    }
 
   }
   componentDidUpdate = (prevProps,prevState) => {
 
       //防止陷入无限循环
     if(prevState.ChallengesDataList!=this.state.ChallengesDataList){
-      let boxoffsetHeigh;
-      let box=document.getElementById("shixunchallengesid");
-      if(box){
-        boxoffsetHeigh=box.offsetHeight
-        if(boxoffsetHeigh<300){
-          this.setState({
-            isopentitletype:"Less",
-            boxoffsetHeigh:boxoffsetHeigh
-          })
-        }else{
-          this.setState({
-            opentitletype:true,
-            isopentitletype:"greater",
-            boxoffsetHeigh:boxoffsetHeigh
-          })
-        }
-         console.log(boxoffsetHeigh)
+      if(this.state.isopentitletype==="greater"){
+
+      }else{
+        this.getjianjiesize()
       }
     }
 
@@ -333,7 +356,6 @@ class Challenges extends Component {
   opentitle=()=>{
     this.setState({
       opentitletype:!this.state.opentitletype,
-
     })
   }
 
@@ -415,16 +437,7 @@ class Challenges extends Component {
                   this.props.identity < 5?<a className="fr font-14 color-blue mr20" href="/forums/2943"
                      target="_blank">实训制作指南</a> : "":""}
               </div>
-              {this.state.opentitletype===true?<style>
-                {
-                  `
-									#shixunchallengesid{
-								    	max-height: 300px;
-									    overflow: hidden;
-									}
-									`
-                }
-              </style>:""}
+
               <div>
                 <div className={"pd20"} id={"shixunchallengesid"}>
                 <style>
@@ -436,6 +449,40 @@ class Challenges extends Component {
                     `
                   }
                 </style>
+                  <style>
+                    {
+                      `
+                    .markdown-body img{
+                      min-height: 200px;
+                    }
+                    `
+                    }
+                  </style>
+
+                  {ChallengesDataList === undefined || ChallengesDataList&&ChallengesDataList.description=== ""||ChallengesDataList&&ChallengesDataList.description===null||ChallengesDataList&&ChallengesDataList.description===undefined?<style>
+                    {
+                      `
+									#shixunchallengesid{
+								    	max-height: 300px;
+									    overflow: hidden;
+									}
+									`
+                    }
+                  </style>:""}
+
+
+                  {ChallengesDataList === undefined || ChallengesDataList&&ChallengesDataList.description=== ""||ChallengesDataList&&ChallengesDataList.description===null||ChallengesDataList&&ChallengesDataList.description===undefined?"":this.state.isopentitletype==="greater"&&this.state.opentitletype===true?
+                  <style>
+                    {
+                      `
+                      #shixunchallengesid{
+                          max-height:260px;
+                          overflow: hidden;
+                      }
+                      `
+                    }
+                  </style>:""}
+
 
                 <div className="justify break_full_word new_li "
                      id="challenge_editorMd_description">
diff --git a/public/react/src/modules/tpm/shixunchild/Challenges/Challengesjupyter.js b/public/react/src/modules/tpm/shixunchild/Challenges/Challengesjupyter.js
index e04ad17c9..ca1e9d2ff 100644
--- a/public/react/src/modules/tpm/shixunchild/Challenges/Challengesjupyter.js
+++ b/public/react/src/modules/tpm/shixunchild/Challenges/Challengesjupyter.js
@@ -47,33 +47,54 @@ class Challengesjupyter extends Component {
 							isopentitletype:"Less",
 						})
 					}
+					this.getjianjiesize()
 				}
 			}
 		}).catch((error) => {
 			//console.log(error)
 		});
 	}
+
+
+	getjianjiesize=()=>{
+		let {ChallengesDataList}=this.state;
+		let boxoffsetHeigh;
+		let box=document.getElementById("shixunchallengesid");
+
+		if(box){
+			boxoffsetHeigh=box.offsetHeight
+			if(ChallengesDataList === undefined || ChallengesDataList&&ChallengesDataList.description=== ""||ChallengesDataList&&ChallengesDataList.description===null||ChallengesDataList&&ChallengesDataList.description===undefined){
+
+			}else{
+				if(this.state.isopentitletype==="greater"){
+
+				}else{
+					if(boxoffsetHeigh>=300){
+						this.setState({
+							opentitletype:true,
+							isopentitletype:"greater",
+							boxoffsetHeigh:boxoffsetHeigh
+						})
+					}else{
+						this.setState({
+							isopentitletype:"Less",
+							boxoffsetHeigh:boxoffsetHeigh
+						})
+					}
+				}
+
+			}
+
+		}
+	}
 	componentDidUpdate = (prevProps,prevState) => {
 
 		//防止陷入无限循环
 		if(prevState.ChallengesDataList!=this.state.ChallengesDataList){
-			let boxoffsetHeigh;
-			let box=document.getElementById("shixunchallengesid");
-			if(box){
-				boxoffsetHeigh=box.offsetHeight
-				if(boxoffsetHeigh<300){
-					this.setState({
-						isopentitletype:"Less",
-						boxoffsetHeigh:boxoffsetHeigh
-					})
-				}else{
-					this.setState({
-						isopentitletype:"greater",
-						opentitletype:true,
-						boxoffsetHeigh:boxoffsetHeigh
-					})
-				}
+			if(this.state.isopentitletype==="greater"){
 
+			}else{
+				this.getjianjiesize()
 			}
 		}
 
@@ -122,6 +143,8 @@ class Challengesjupyter extends Component {
 			}, 600)
 
 		});
+		setTimeout(this.getjianjiesize(), 1000);
+
 	}
 
 	updatamakedowns = () => {
@@ -233,17 +256,39 @@ class Challengesjupyter extends Component {
 								</a>
 							</Tooltip>
 						</div>
-						{this.state.opentitletype===true?<style>
-							{
-								`
+
+						<div>
+							<style>
+								{
+									`
+                    .markdown-body img{
+                      min-height: 200px;
+                    }
+                    `
+								}
+							</style>
+
+							{ChallengesDataList === undefined || ChallengesDataList&&ChallengesDataList.description=== ""||ChallengesDataList&&ChallengesDataList.description===null||ChallengesDataList&&ChallengesDataList.description===undefined?<style>
+								{
+									`
 									#shixunchallengesid{
 								    	max-height: 300px;
 									    overflow: hidden;
 									}
 									`
-							}
-						</style>:""}
-						<div>
+								}
+							</style>:""}
+							{ChallengesDataList === undefined || ChallengesDataList&&ChallengesDataList.description=== ""||ChallengesDataList&&ChallengesDataList.description===null||ChallengesDataList&&ChallengesDataList.description===undefined?"":this.state.isopentitletype==="greater"&&this.state.opentitletype===true?
+								<style>
+									{
+										`
+                      #shixunchallengesid{
+                          max-height:260px;
+                          overflow: hidden;
+                      }
+                      `
+									}
+								</style>:""}
 
 							<div className={"pd20"} id={"shixunchallengesid"}>
 								<p id="ReactMarkdown" style={{overflow:'hidden'}}>