diff --git a/README.md b/README.md
index 169190d..b27212c 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@ educoder微信小程序，帮助使用[educoder平台](https://www.educoder.net)
 [https://github/jinke18/smart_class](https://github.com/jinke18/smart_class)
 
 ## 小程序码
-![小程序码](./images/weapp_code.png)
+![小程序码](/images/weapp_code.png)
 
 # 功能介绍
 
@@ -34,7 +34,7 @@ educoder微信小程序，帮助使用[educoder平台](https://www.educoder.net)
 
 - 试卷截止后并且老师选择了公开答案，学生可以看到公布的答案
 
-- 老师可以创建试卷，发布试卷，查看学员作答分数(developing)
+- 老师可以创建试卷，发布试卷，查看学员作答分数
 
 ## 其他
 账号的注册、登陆、找回密码、头像更改等
diff --git a/app.json b/app.json
index bd1752a..2d2fceb 100644
--- a/app.json
+++ b/app.json
@@ -2,8 +2,7 @@
   "pages": [
     "pages/my_courses/my_courses",
     "pages/findmore/findmore",
-        "pages/exercise_setting/exercise_setting",
-
+    "pages/exercise_setting/exercise_setting",
     "pages/login/login",
     "pages/course_setting/course_setting",
     "pages/exercises/exercises",
@@ -19,7 +18,10 @@
     "pages/reset_password/reset_password",
     "pages/image_crop/image_crop",
     "pages/question_setting/question_setting",
-    "pages/exercise_grade/exercise_grade"
+    "pages/exercise_grade/exercise_grade",
+    "pages/course_invite/course_invite",
+    "pages/exercise_result/exercise_result"
+
   ],
   "window": {
     "backgroundTextStyle": "dark",
@@ -37,19 +39,18 @@
         "iconPath": "images/tabbar-icon/tabbar_study_default.png",
         "selectedIconPath": "images/tabbar-icon/tabbar_study_pressed.png"
       },
-
       {
         "pagePath": "pages/courses/courses",
         "text": "课程列表",
         "iconPath": "images/tabbar-icon/tabbar_contact_default.png",
         "selectedIconPath": "images/tabbar-icon/tabbar_contact_pressed.png"
       },
-            {
-              "pagePath": "pages/findmore/findmore",
-              "text": "发现",
-              "iconPath": "images/tabbar-icon/tabbar_findmore_default.png",
-              "selectedIconPath": "images/tabbar-icon/tabbar_findmore_pressed.png"
-            },
+      {
+        "pagePath": "pages/findmore/findmore",
+        "text": "发现",
+        "iconPath": "images/tabbar-icon/tabbar_findmore_default.png",
+        "selectedIconPath": "images/tabbar-icon/tabbar_findmore_pressed.png"
+      },
       {
         "pagePath": "pages/setting/setting",
         "iconPath": "images/tabbar-icon/tabbar_settings_default.png",
diff --git a/data/client.js b/data/client.js
index 7627593..5db587a 100644
--- a/data/client.js
+++ b/data/client.js
@@ -608,6 +608,29 @@ export class Client{
             })
         })
     }
+    /**
+     * @todo change limit default 10
+     */
+  get_exercise_result({ exercise_id, sort = "asc", page = 1, limit=50, success, fail, complete}){
+    return new Promise((resolve, reject)=>{
+      Exercise.get_result({
+        session: this.session,
+        exercise_id, sort, page, limit,
+        success: res => {
+          if (typeof success == "function") {
+            success(res);
+          }
+          resolve(res);
+        },
+        fail: error => {
+          if (typeof fail == "function") {
+            fail(error);
+          }
+          reject(error);
+        }
+      })
+    })
+  }
     get_exercise_grade({exercise_id,order="end_at", search="", success, fail, complete}){
         return new Promise((resolve, reject) => {
             Exercise.get_grade({
diff --git a/data/eduapi.js b/data/eduapi.js
index 25504c2..428e71f 100644
--- a/data/eduapi.js
+++ b/data/eduapi.js
@@ -420,6 +420,28 @@ export class Exercise{
             complete: complete
         })
     }
+    /**@todo limit change */
+    static get_result({session, exercise_id, sort="asc", page=1, limit=50,success, fail, complete}){
+      let data={sort, page, limit};
+      session.request({
+        url: api_base_url +`/exercises/${exercise_id}/exercise_result.json`,
+        method: "GET",
+        data,
+        success(res) {
+          if ("status" in res.data) {
+            if (res.data.status < 0) {
+              fail(new Error(res.data.message));
+              return;
+            }
+          }
+          if (typeof success == "function") {
+            success(res);
+          }
+        },
+        fail: fail,
+        complete: complete
+      })
+    }
     static publish({session,course_id,  exercise_ids, end_time, success, fail, complete}){
         let data = {check_ids: exercise_ids, end_time};
         session.request({
diff --git a/images/invite.png b/images/invite.png
new file mode 100644
index 0000000..d7b75a7
Binary files /dev/null and b/images/invite.png differ
diff --git a/pages/about/about.js b/pages/about/about.js
index 348927c..4bbfd63 100644
--- a/pages/about/about.js
+++ b/pages/about/about.js
@@ -6,7 +6,8 @@ Page({
   /**
    * 页面的初始数据
    */
-  md: '# 简介\neducoder微信小程序，帮助使用[educoder平台](https://www.educoder.net)的应用，方便在手机上使用。利用educoder网站的API搭建\n\n## 源码\n[https://github/jinke18/smart_class](https://github.com/jinke18/smart_class)\n\n## 小程序码\n![小程序码](../../images/weapp_code.png)\n\n\n# 功能介绍\n\n## 教室\n- 学员可以输入邀请码进入课堂\n\n- 进入教室界面会显示在位，头像为彩色，若退出课堂界面则会显示灰色头像\n\n- 教员在教室界面中可以直观地看到学员在位情况，可以选择学员让其起立回答问题，并且对学员可以进行加分、减分操作\n\n- 学员可以收到教员让其起立提问、回答的提示，还可以点击“我要提问、回答”\n\n- 教室内有讨论区，可以交流\n\n## 课程资源\n\n- 在课程界面进入“资源”可以查看本课堂的课程文件资源\n\n- 支持打开ppt doc xls pdf文件\n\n## 试卷作答\n\n- 学员在课程内可以看到老师发布的试卷，并且回答\n\n- 试卷截止后可以学生可以看到公布的答案',
+  md: '# 简介\neducoder微信小程序，帮助使用[educoder平台](https://www.educoder.net)的应用，方便在手机上使用。利用educoder网站的API搭建\n\n## 源码\n[https://github/jinke18/smart_class](https://github.com/jinke18/smart_class)\n\n## 小程序码\n![小程序码](/images/weapp_code.png)\n\n# 功能介绍\n\n## 教室\n- 学员可以输入邀请码进入课堂\n\n- 进入教室界面会显示在位，头像为彩色，若退出课堂界面则会显示灰色头像\n\n- 教员在教室界面中可以直观地看到学员在位情况，可以选择学员让其起立回答问题，并且对学员可以进行加分、减分操作\n\n- 在分数列表中可以看到加减分记录（数据在后台可以导出）\n\n- 学员可以收到教员让其起立提问、回答的提示，还可以点击“我要提问、回答”\n\n- 教室内有讨论区，可以交流\n\n## 课程资源\n\n- 在课程界面进入“资源”可以查看本课堂的课程文件资源\n\n- 支持打开ppt doc xls pdf文件\n\n## 试卷作答\n\n- 学员在课程内可以看到老师发布的试卷，并且回答\n\n- 试卷截止后并且老师选择了公开答案，学生可以看到公布的答案\n\n- 老师可以创建试卷，发布试卷，查看学员作答分数(developing)\n\n## 其他\n账号的注册、登陆、找回密码、头像更改等\n\n# 实现\n## educoder平台接入\n使用HTTP与平台的api接口交互\n\n接口列表如下\n- 搜索课堂https://www.educoder.net/api/courses.json\n\n- 查询用户的课堂https://www.educoder.net/api/users/<user_id>/courses.json\n\n- 查询学校https://www.educoder.net/api/schools/school_list.json\n\n- 新建课堂https://www.educoder.net/api/courses.json\n\n- 加入课堂https://www.educoder.net/api/courses/apply_to_join_course.json\n\n- 新建试卷https://www.educoder.net/api/courses/<course_id>/exercises/new.json\n\n- 查询试卷https://www.educoder.net/api/courses/<course_id>/exercises.json\n\n- 班级文件资源https://www.educoder.net/api/files.json\n\n# 教室学员在位情况及分数的同步实现\n使用了[leancloud](https://www.leancloud.cn/)提供的javascript开发包实现数据同步功能, 如学员在位情况、分数的同步, 其底部技术为websocket'
+,
 
   data: {
     article: {}
diff --git a/pages/course/course.js b/pages/course/course.js
index b476af4..fa2c211 100644
--- a/pages/course/course.js
+++ b/pages/course/course.js
@@ -1,4 +1,5 @@
 // pages/course_detail/course_detail.js
+const app = getApp();
 Page({
 
   /**
@@ -39,7 +40,8 @@ Page({
    * 生命周期函数--监听页面加载
    */
   onLoad: function (options) {
-    this.setData({"course.id": options.course_id})
+    this.course_id = options.course_id;
+    this.setData({course_id: options.course_id})
     if(options.course_name && options.course_name!="undefined"){
       wx.setNavigationBarTitle({
         title: options.course_name
@@ -59,7 +61,11 @@ Page({
    * 生命周期函数--监听页面显示
    */
   onShow: function () {
-
+    app.client.get_course_info({course_id: this.course_id})
+    .then(res=>{
+      console.log(res);
+      this.setData({course: res.data});
+    });
   },
 
   /**
@@ -93,7 +99,16 @@ Page({
   /**
    * 用户点击右上角分享
    */
-  onShareAppMessage: function () {
-
+  onShareAppMessage: function (options) {
+    let course = this.data.course;
+    let next_week_time = new Date().getTime()+7*24*3600*1000;
+    let current_user = app.client.current_user;
+    if(options.from=="button"){
+      return{
+        path: `/pages/course_invite/course_invite?course_id=${this.course_id}&invite_code=${course.invite_code}&deadline=${next_week_time}&course_name=${course.name}&inviter=${current_user.real_name}&avatar_url=https://www.educoder.net/images/${current_user.image_url}`,
+        imageUrl:"/images/invite.png",
+        title: "课堂邀请--"+course.name
+      }
+    }
   }
 })
\ No newline at end of file
diff --git a/pages/course/course.wxml b/pages/course/course.wxml
index 31ad5d0..b8dbb16 100644
--- a/pages/course/course.wxml
+++ b/pages/course/course.wxml
@@ -1,5 +1,6 @@
 <view class="container">
   <view class="top-banner">
+    <view class="course_name">{{course.name}}</view>
     <view class="teacher">
     </view>
   </view>
@@ -7,8 +8,9 @@
     <block wx:for="{{course_modules}}" wx:for-item="course_module">
       <navigator></navigator>
     </block>
-    <view wxLif="{{show_classroom}}" data-url="../classroom/classroom?id={{course.id}}" bindtap="enter_page" class="nav course_module">进入教室</view>
-    <navigator url="../exercises/exercises?id={{course.id}}" class="nav course_module">试卷</navigator>
-    <navigator url="../files/files?id={{course.id}}" class="nav course_module">资源</navigator>
+    <view wxLif="{{show_classroom}}" data-url="../classroom/classroom?id={{course_id}}" bindtap="enter_page" class="nav course_module">进入教室</view>
+    <navigator url="../exercises/exercises?id={{course_id}}" class="nav course_module">试卷</navigator>
+    <navigator url="../files/files?id={{course_id}}" class="nav course_module">资源</navigator>
   </view>
+  <button wx:if="{{course.is_admin}}" open-type="share">发送课堂邀请链接</button>
 </view>
\ No newline at end of file
diff --git a/pages/course_invite/course_invite.js b/pages/course_invite/course_invite.js
new file mode 100644
index 0000000..b77baea
--- /dev/null
+++ b/pages/course_invite/course_invite.js
@@ -0,0 +1,110 @@
+// pages/course_join/course_invite.js
+const app = getApp();
+Page({
+
+  /**
+   * 页面的初始数据
+   */
+  data: {
+
+  },
+
+
+    join_course: function(event) {
+      const { invite_code, identities } = this.data;
+      let data = { invite_code: invite_code, student: 1};
+      console.log(data);
+      console.log({ ...data });
+      app.client.join_course({ ...data })
+        .then(res => {
+          if (res.data.status == 401) {
+            wx.showToast({
+              title: "请先登陆",
+              icon: "none"
+            });
+            wx.navigateTo({
+              url: '../login/login',
+            })
+            return;
+          }
+          console.log(res);
+          wx.showToast({
+            title: res.data.message
+          })
+          wx.navigateTo({
+            url: "../course/course?course_id=" + res.data.course_id
+          });
+        })
+        .catch(error => {
+          wx.showToast({
+            title: error.toString(),
+            icon: "none"
+          });
+          console.warn(error);
+        })
+
+    },
+
+  /**
+   * 生命周期函数--监听页面加载
+   */
+  onLoad: function (options) {
+    console.log(options);
+    this.invite_code = options.invite_code;
+    this.deadline = options.deadline;
+    this.inviter = options.inviter;
+    this.course_name = options.course_name;
+    this.setData(options);
+    let current_time = new Date().getTime();
+    this.setData({current_time: current_time});
+  },
+
+  /**
+   * 生命周期函数--监听页面初次渲染完成
+   */
+  onReady: function () {
+
+  },
+
+  /**
+   * 生命周期函数--监听页面显示
+   */
+  onShow: function () {
+
+  },
+
+  /**
+   * 生命周期函数--监听页面隐藏
+   */
+  onHide: function () {
+
+  },
+
+  /**
+   * 生命周期函数--监听页面卸载
+   */
+  onUnload: function () {
+
+  },
+
+  /**
+   * 页面相关事件处理函数--监听用户下拉动作
+   */
+  onPullDownRefresh: function () {
+
+  },
+
+  /**
+   * 页面上拉触底事件的处理函数
+   */
+  onReachBottom: function () {
+
+  },
+
+  /**
+   * 用户点击右上角分享
+   */
+  onShareAppMessage: function () {
+
+  }
+})
\ No newline at end of file
diff --git a/pages/course_invite/course_invite.json b/pages/course_invite/course_invite.json
new file mode 100644
index 0000000..8835af0
--- /dev/null
+++ b/pages/course_invite/course_invite.json
@@ -0,0 +1,3 @@
+{
+  "usingComponents": {}
+}
\ No newline at end of file
diff --git a/pages/course_invite/course_invite.wxml b/pages/course_invite/course_invite.wxml
new file mode 100644
index 0000000..d4b8c42
--- /dev/null
+++ b/pages/course_invite/course_invite.wxml
@@ -0,0 +1,13 @@
+<view class="container">
+  <view class="course_info" style="text-align: center;padding: 18px; margin-bottom: 20px;">
+    <image style="border-radius: 50%;overflow: hidden;width: 136rpx;height:136rpx;" src="{{avatar_url}}"></image>
+    <text>\n{{inviter}}\n</text>
+    <text>邀请你加入课程\n</text>
+    <text style="font-size:24px;">{{course_name}}\n</text>
+  </view>
+  <view style="text-align:center;">
+    <button type="primary" wx:if="{{current_time<=deadline}}" bindtap="join_course">加入
+    </button>
+    <view class="error" disabled="{{current_time>deadline}}">该邀请链接已失效</view>
+  </view>
+</view>
diff --git a/pages/course_invite/course_invite.wxss b/pages/course_invite/course_invite.wxss
new file mode 100644
index 0000000..f352e92
--- /dev/null
+++ b/pages/course_invite/course_invite.wxss
@@ -0,0 +1 @@
+/* pages/course_join/course_invite.wxss */
\ No newline at end of file
diff --git a/pages/exercise_result/exercise_result.js b/pages/exercise_result/exercise_result.js
new file mode 100644
index 0000000..7b6fcd1
--- /dev/null
+++ b/pages/exercise_result/exercise_result.js
@@ -0,0 +1,99 @@
+// pages/exercise_result/exercise_result.js
+const app = getApp();
+Page({
+
+  /**
+   * 页面的初始数据
+   */
+  data: {
+    results: [],
+    page_status: 0,
+    error:""
+  },
+
+  /**
+   * 生命周期函数--监听页面加载
+   */
+  onLoad: function (options) {
+    this.exercise_id = options.exercise_id;
+    this.exercise_id = 2996;
+  },
+
+  /**
+   * 生命周期函数--监听页面初次渲染完成
+   */
+  onReady: function () {
+
+  },
+
+  /**
+   * 生命周期函数--监听页面显示
+   */
+  onShow: function () {
+    app.client.get_exercise_result({ exercise_id: this.exercise_id })
+      .then(res => {
+        this.setData({ error: "" })
+        console.log(res);
+        if (res.data.commit_results) {
+          let results = res.data.commit_results;
+          for (var result of results) {
+            if (result.ques_type == 4) {
+              for (var detail of result.ques_details) {
+                if (detail.choice_text == 1) detail.choice_text = "满分作答";
+                else if (detail.choice_text == 2) detail.choice_text = "部分得分作答";
+                else if (detail.choice_text == 3) detail.choice_text = "零分作答";
+                else if (detail.choice_text == 4) detail.choice_text = "未批";
+              }
+            }
+            if (result.ques_type == 3) {
+              for (var detail of result.ques_details) {
+                if (detail.choice_text == "wrong") detail.choice_text = "错误答案";
+              }
+            }
+          }
+          console.log(results);
+          this.setData({ results, page_status: 1 })
+        }
+
+      })
+      .catch(error => {
+        console.log(error);
+        this.setData({ error: error.message })
+      })
+  },
+
+  /**
+   * 生命周期函数--监听页面隐藏
+   */
+  onHide: function () {
+
+  },
+
+  /**
+   * 生命周期函数--监听页面卸载
+   */
+  onUnload: function () {
+
+  },
+
+  /**
+   * 页面相关事件处理函数--监听用户下拉动作
+   */
+  onPullDownRefresh: function () {
+
+  },
+
+  /**
+   * 页面上拉触底事件的处理函数
+   */
+  onReachBottom: function () {
+
+  },
+
+  /**
+   * 用户点击右上角分享
+   */
+  onShareAppMessage: function () {
+
+  }
+})
\ No newline at end of file
diff --git a/pages/exercise_result/exercise_result.json b/pages/exercise_result/exercise_result.json
new file mode 100644
index 0000000..e4ea3bc
--- /dev/null
+++ b/pages/exercise_result/exercise_result.json
@@ -0,0 +1,4 @@
+{
+  "usingComponents": {},
+  "navigationBarTitleText": "试卷结果"
+}
\ No newline at end of file
diff --git a/pages/exercise_result/exercise_result.wxml b/pages/exercise_result/exercise_result.wxml
new file mode 100644
index 0000000..bdbfcf4
--- /dev/null
+++ b/pages/exercise_result/exercise_result.wxml
@@ -0,0 +1,44 @@
+<view class="container">
+  <view class="error" wx:if="{{page_status==1&&results.length==0}}">
+    结果未公布
+  </view>
+  <view class="error" wx:if="{{error}}">
+    {{error}}
+  </view>
+  <view class="result-list" style="margin:0 -12px;">
+    <block wx:for="{{results}}" wx:for-item="result">
+    <view class="question" style="margin:7px 2px; padding:4px 12px; background:white; border-radius: 10rpx;">
+      <view class="question-title">
+        <text class="hint">第{{result.ques_position}}题</text>
+        <text>{{result.ques_title}}</text>
+        <text class="hint">{{result.effictive_counts||0}}人作答</text>
+        <text class="error">正确率：{{result.right_percent}}%</text>
+      </view>
+      <view wx:if="{{result.ques_type==0 || result.ques_type==1 || result.ques_type==2}}" class="choices">
+        <block wx:for="{{result.ques_details}}" wx:for-item="detail">
+          <view class="choice">
+            <radio checked="{{detail.choice_right_boolean}}" disabled>
+              <text class="choice-text">{{detail.choice_text}}</text>
+              <text class="error">{{detail.choice_users_count}}人</text>
+            </radio>
+            <progress active show-info duration="7" border-radius="2" percent="{{detail.choice_percent*100}}"></progress>
+          </view>
+        </block>
+      </view>
+      <view wx:elif="{{result.ques_type==3 || result.ques_type==4}}" class="choices">
+        <block wx:for="{{result.ques_details}}" wx:for-item="detail">
+          <view class="choice">
+            <text class="choice-text">{{detail.choice_text}}</text>
+            <text class="error">{{detail.choice_users_count}}人</text>
+            <progress active show-info duration="7" border-radius="2" percent="{{detail.choice_percent*100}}"></progress>
+          </view>
+        </block>
+      </view>
+      <view wx:else class="choices">
+        暂不支持此类题目
+      </view>
+
+    </view>
+    </block>
+  </view>
+</view>
\ No newline at end of file
diff --git a/pages/exercise_result/exercise_result.wxss b/pages/exercise_result/exercise_result.wxss
new file mode 100644
index 0000000..b8287df
--- /dev/null
+++ b/pages/exercise_result/exercise_result.wxss
@@ -0,0 +1 @@
+/* pages/exercise_result/exercise_result.wxss */
\ No newline at end of file
diff --git a/pages/exercise_setting/exercise_setting.js b/pages/exercise_setting/exercise_setting.js
index d0c4cd1..018b150 100644
--- a/pages/exercise_setting/exercise_setting.js
+++ b/pages/exercise_setting/exercise_setting.js
@@ -143,10 +143,5 @@ Page({
 
   },
 
-  /**
-   * 用户点击右上角分享
-   */
-  onShareAppMessage: function () {
-
-  }
+  
 })
\ No newline at end of file
diff --git a/pages/exercises/exercises.js b/pages/exercises/exercises.js
index 306378a..38f2591 100644
--- a/pages/exercises/exercises.js
+++ b/pages/exercises/exercises.js
@@ -53,6 +53,11 @@ Page({
     currentTab: 0,
     navScrollLeft: 0
   },
+  exercise_result: function ({ currentTarget: { dataset } }){
+    wx.navigateTo({
+      url: `../exercise_result/exercise_result?exercise_id=${dataset.exercise_id}`,
+    })
+  },
   see_grade: function({currentTarget:{dataset}}){
     wx.navigateTo({
       url: `../exercise_grade/exercise_grade?exercise_id=${dataset.exercise_id}`,
diff --git a/pages/exercises/exercises.wxml b/pages/exercises/exercises.wxml
index 33d9bae..26e7bbc 100644
--- a/pages/exercises/exercises.wxml
+++ b/pages/exercises/exercises.wxml
@@ -23,13 +23,15 @@
             </navigator>
           </view>
           <block wx:for="{{exercises}}" wx:for-item="exercise" wx:key="id">
-            <view class="exercise" wx:if="{{exercise.exercise_status==navItem.exercise_status||navItem.exercise_status=='all'}}" class="exercise" bindtap="see_grade" bindlongpress="enter_exercise" data-exercise_id="{{exercise.id}}">
+            <view class="exercise" wx:if="{{exercise.exercise_status==navItem.exercise_status||navItem.exercise_status=='all'}}" class="exercise" catchtap="see_grade" bindlongpress="enter_exercise" data-exercise_id="{{exercise.id}}">
               <view class="exercise-name">
-                <text class="exercise-name">{{exercise.exercise_name}}</text>
+                <text class="exercise-name" data-exercise_id="{{exercise.id}}" bindtap="exercise_result">{{exercise.exercise_name}}</text>
               </view>
               <view class="exercise-info flex-wrap">
                 <text class="hint" wx:if="{{exercise.exercise_status!=3&&(exercise.current_status==0 || exercise.current_status==2)}}">还有{{exercise.exercise_left_time||'    '}}截止</text>
-                <text class="exercise-tip">{{exercise.exercise_tips[0]}}</text>
+                <block wx:for="{{exercise.exercise_tips}}" wx:for-item="exercise_tip">
+                  <text class="exercise-tip">{{exercise_tip}}</text>
+                </block>
                 <text wx:if="{{exercise.exercise_status!=3&&(exercise.current_status==0 || exercise.current_status==2)}}" class="start-answer tappable" catchtap="enter_exercise" data-exercise_id="{{exercise.id}}">进入答题</text>
                 <text wx:if="{{(exercise.current_status==1 || exercise.exercise_status==3)&&exercise.current_status!=3}}" class="start-answer tappable" catchtap="see_exercise" data-exercise_id="{{exercise.id}}">查看答题</text>
                 <text wx:if="{{exercise.current_status==3&&(exercise.exercise_status==1||exercise.exercise_status==2)}}" class="edit-exercise tappable" data-exercise_id="{{exercise.id}}" catchtap="edit_exercise">编辑</text>