更改可以抽取所有学生

CLASS1/miniprogram/pages/rollCall/rollCall.js

@@ -2,10 +2,10 @@
 const db = wx.cloud.database();
 Page({
   data: {
-    students: [], // 存储所有学生信息
-    currentStudent: null, // 当前选中的学生信息
-    score: '', // 用户输入的分数
-    effects: [ // 特殊效果数组
+    students: [],
+    currentStudent: null,
+    score: '',
+    effects: [
       { name: '+0分', value: 0, type: 'add' },
       { name: '+1分', value: 1, type: 'add' },
       { name: '+2分', value: 2, type: 'add' },
@@ -16,34 +16,44 @@ Page({
       { name: '-2分', value: -2, type: 'add' },
       { name: '积分乘2', value: 2, type: 'multiply' },
       { name: '积分除2', value: 0.5, type: 'divide' }
-    ]
+    ],
+    page: 1,
+    pageSize: 10,
+    hasMore: true
   },
   
-  onLoad: function() {
-    this.loadStudents();
-  },
-
-  // 加载学生数据
-  loadStudents: function() {
-    const studentsCollection = db.collection('users');
-    studentsCollection.get({
-      success: res => {
-        if (res.data.length === 0) {
-          wx.showToast({
-            title: '没有学生数据',
-            icon: 'none',
-            duration: 2000
+  loadAllStudents: function() {
+    const that = this;
+    const loadNextPage = function() {
+      const studentsCollection = db.collection('users');
+      studentsCollection.skip((that.data.page - 1) * that.data.pageSize).limit(that.data.pageSize).get({
+        success: res => {
+          if (res.data.length === 0) {
+            that.setData({
+              hasMore: false
+            });
+            return;
+          }
+          let newStudents = that.data.students.concat(res.data);
+          that.setData({
+            students: newStudents,
+            page: that.data.page + 1
           });
-          return;
+          // 如果还有更多数据，继续加载下一页
+          if (that.data.hasMore) {
+            loadNextPage();
+          }
+        },
+        fail: err => {
+          console.error('学生数据加载失败：', err);
         }
-        this.setData({
-          students: res.data
-        });
-      },
-      fail: err => {
-        console.error('学生数据加载失败：', err);
-      }
-    });
+      });
+    };
+    loadNextPage();
+  },
+  
+  onLoad: function() {
+    this.loadAllStudents();
   },
   
   // 按积分加权随机点名
@@ -127,7 +137,7 @@ Page({
         duration: 2000
       });
     }).catch(err => {
-      console.log('更新失败', err); // 失败提示错误信息
+      console.log('更新失败', err); 
     })
   },
   addHalfScore: function() {
@@ -197,7 +207,7 @@ Page({
     }
   },
 
-  // 减少1分
+  
   subtractOneScore: function() {
     if (this.data.currentStudent) {
       this.updateStudentScore(-1);
@@ -248,13 +258,13 @@ Page({
       return;
     }
   
-    // 随机选择一个效果
+    
     const effect = this.data.effects[Math.floor(Math.random() * this.data.effects.length)];
     this.setData({
-      effect: effect // 设置抽取的效果以便显示
+      effect: effect 
     });
   
-    // 根据效果类型更新分数
+    
     let newScore;
     switch (effect.type) {
       case 'add':
@@ -323,8 +333,8 @@ Page({
         }
         this.setData({
           students: res.data,
-          currentStudent: null, // 清空当前选中的学生信息
-          effect: null // 清空效果信息
+          currentStudent: null, 
+          effect: null 
         });
       },
       fail: err => {