bugfix:修复弹窗太大的bug，修复多次打开弹框后页码错乱的bug，修复题目选择后丢失之前选择的题目的bug。

views/admin_classify.ejs

@@ -7,6 +7,10 @@
     .current-classify{
         margin-bottom: 20px;
     }
+    .classify{
+        height:85%;
+        overflow: auto;
+    }
 </style>
 <div id="classify" v-cloak>
     <div class="ui modal classify">
@@ -54,6 +58,7 @@
                     <el-pagination
                             @current-change="handlePageChange"
                             layout="prev, pager, next"
+                            :current-page.sync="currentPage"
                             :total="problemCount">
                     </el-pagination>
                 </div>
@@ -113,7 +118,8 @@
       problemList: [],
       usedProblemId: [],
       multipleSelection: [],
-      problemCount: -1
+      problemCount: -1,
+      currentPage:1
     },
     created: function() {
       this.getClassifyInfo();
@@ -126,7 +132,6 @@
           url: '/api/pagination/allproblem',
           type: 'GET',
           success: function (data) {
-            console.log(data.problemInfo.count);
             that.problemCount = parseInt(data.problemInfo.count);
           },
           error: function (XMLHttpRequest, textStatus, errorThrown) {
@@ -180,7 +185,7 @@
         })
       },
       handleSelectionChange(val) {
-        this.multipleSelection = val;
+        this.multipleSelection = this.multipleSelection.concat(val);
       },
       getClassifyInfo: function() {
         let that = this;
@@ -233,12 +238,11 @@
       },
       show: function(id){
         let that = this;
-        console.log(id);
         this.getProblemPagination(1)
         if (id) {
           this.classifyId = id;
-          // this.getProblemPagination(1)
           this.getClassifyInfos(id);
+          this.currentPage = 1;
         } else {
           this.resetModal();
         }
@@ -257,10 +261,11 @@
             name: this.classifyName,
             intro: this.classifyIntro,
             order: this.order,
-            problemIdArray: this.multipleSelection.map(function(item){
+            problemIdArray: [...new Set(this.multipleSelection.map(function(item){
               return item.id
-            })
+            }))]
           }
+          console.log(obj.problemIdArray);
           if (this.classifyId === -1) {
             $.ajax({
               url: '/api/practice/create',
@@ -270,6 +275,7 @@
               success: function (data) {
                 if (data.error_code) {
                   alert('创建失败');
+                  that.resetModal();
                 } else {
                   alert('添加成功');
                   that.resetModal();