快递回显bug修复

src/views/ecw/channel/edit.vue

@@ -72,7 +72,7 @@
                        <el-form-item :label="$t('快递')" prop="expressId">
                             <!-- <el-input v-model="form.expressId" placeholder="请输入快递ID" /> -->
                             <el-select v-model="form.expressId">
-                                <el-option v-for="item in expressList" :value="item.id" :label="item.companyName" :key="item.id"/>
+                                <el-option v-for="item in expressList" :value="item.id+''" :label="item.companyName" :key="item.id"/>
                             </el-select>
                         </el-form-item>
                     </el-col>