diff --git a/src/views/course/apply_list.vue b/src/views/course/apply_list.vue
index 80c976c..f58b41b 100644
--- a/src/views/course/apply_list.vue
+++ b/src/views/course/apply_list.vue
@@ -500,6 +500,18 @@
         this.getList()
       },
       async getList() {
+        const filter = [{
+          key: 'course_id',
+          op: 'eq',
+          value: this.select.course_id
+        }]
+        if (this.select.status !== '' && this.select.status !== null && this.select.status !== undefined) {
+          filter.push({
+            key: 'status',
+            op: 'eq',
+            value: this.select.status
+          })
+        }
         const res = await index({
           page: this.select.page,
           page_size: this.select.page_size,
@@ -514,15 +526,7 @@
           type: this.select.type,
           sort_name: 'score',
           sort_type: this.select.sort_type,
-          filter: [{
-            key: 'course_id',
-            op: 'eq',
-            value: this.select.course_id
-          }, {
-            key: 'status',
-            op: 'eq',
-            value: this.select.status
-          }]
+          filter
         })
         this.list = res.data
         this.total = res.total
@@ -577,6 +581,19 @@
         _export['user.idcard'] = '身份证号'
         _export['score'] = '评分'
 
+        const filter = [{
+          key: 'course_id',
+          op: 'eq',
+          value: this.select.course_id
+        }]
+        if (this.select.status !== '' && this.select.status !== null && this.select.status !== undefined) {
+          filter.push({
+            key: 'status',
+            op: 'eq',
+            value: this.select.status
+          })
+        }
+
         download(
           '/api/admin/course-signs/index',
           'get', {
@@ -592,15 +609,7 @@
             sort_name: 'score',
             sort_type: this.select.sort_type,
             export_fields: _export,
-            filter: [{
-              key: 'course_id',
-              op: 'eq',
-              value: this.select.course_id
-            }, {
-              key: 'status',
-              op: 'eq',
-              value: this.select.status
-            }],
+            filter,
             is_export: 1,
             page: 1,
             page_size: 999
diff --git a/src/views/course/components/showCode.vue b/src/views/course/components/showCode.vue
index 70c8b6b..666efd0 100644
--- a/src/views/course/components/showCode.vue
+++ b/src/views/course/components/showCode.vue
@@ -16,9 +16,18 @@
               </div>
 
             </div>
-            <div class="code">
-              <div v-if="imgSrc">
-                <img :src="imgSrc"></img>
+            <div class="code">
+              <div v-if="imgSrc">
+                <img :src="imgSrc" />
+              </div>
+              <div v-else class="empty-code">
+                <p>{{ loading ? '加载中...' : '暂无二维码' }}</p>
+                <el-button
+                  v-if="!loading"
+                  type="primary"
+                  :loading="generating"
+                  @click="generateCode"
+                >生成二维码</el-button>
               </div>
             </div>
           </div>
@@ -35,7 +44,7 @@
   </div>
 </template>
 
-<script>
+<script>
   import {getQrCode} from "@/api/course"
   export default {
     components: {
@@ -46,29 +55,67 @@
         isShow: false,
         form: {
           settings: '',
-        },
+        },
         row:{},
-        rules: {},
-        imgSrc:''
+        rules: {},
+        imgSrc:'',
+        loading: false,
+        generating: false
       }
     },
     created() {},
     methods: {
 
       async getCode() {
-        const res = await getQrCode({
-          id: this.row.id,
-        })
-        this.imgSrc = res.msg
+        if (!this.row.id) {
+          this.imgSrc = ''
+          return
+        }
+        this.loading = true
+        this.imgSrc = ''
+        try {
+          // 仅查询已有二维码，不触发生成，避免打开弹窗即 500
+          const res = await getQrCode({
+            id: this.row.id,
+            generate: 0
+          }, false)
+          this.imgSrc = res.msg || ''
+        } catch (e) {
+          this.imgSrc = ''
+        } finally {
+          this.loading = false
+        }
+      },
+      async generateCode() {
+        if (!this.row.id || this.generating) {
+          return
+        }
+        this.generating = true
+        try {
+          const res = await getQrCode({
+            id: this.row.id,
+            generate: 1
+          })
+          this.imgSrc = res.msg || ''
+          if (this.imgSrc) {
+            this.$message.success('二维码生成成功')
+          }
+        } catch (e) {
+          // request 拦截器已提示错误
+        } finally {
+          this.generating = false
+        }
       }
     },
     watch: {
       isShow(newVal) {
-        if (newVal) {
+        if (newVal) {
           this.getCode()
-        } else {
-          this.row = {}
+        } else {
+          this.row = {}
           this.imgSrc = ''
+          this.loading = false
+          this.generating = false
         }
       },
     }
@@ -88,7 +135,7 @@
   }
 
   .code {
-    height: 200px;
+    min-height: 200px;
     text-align: center;
 
     img {
@@ -96,4 +143,17 @@
       height: 200px;
     }
   }
-</style>
+
+  .empty-code {
+    display: flex;
+    flex-direction: column;
+    align-items: center;
+    justify-content: center;
+    min-height: 200px;
+
+    p {
+      margin-bottom: 16px;
+      color: #909399;
+    }
+  }
+</style>