添加员工，角色修改为必填项

src/views/shop/components/addStaff.vue

@@ -19,7 +19,7 @@
             <el-form-item label="最大优惠金额">
                 <el-input-number v-model="form.maxDiscountAmount" controls-position="right" :min="0"></el-input-number>
             </el-form-item>
-            <el-form-item label="角色">
+            <el-form-item label="角色" prop="roleId">
                 <el-select v-model="form.roleId" placeholder="请选择角色">
                     <el-option :label="item.name" :value="item.id" v-for="item in roles" :key="item.id"></el-option>
                 </el-select>
@@ -95,7 +95,7 @@ export default {
                     {
                         required: true,
                         message: ' ',
-                        trigger: 'blur'
+                        trigger: 'change'
                     }
                 ],
                 phone: [