优化反复请求时，清除上次的结果，显示初始值

src/components/ec_api/TabArea.vue

@@ -196,6 +196,12 @@ function handle_request_url() {
 
 // 发送api请求
 function send_request() {
+  if (UserApiData.value.api[activeTab.value].format === 'json'){
+    UserApiData.value.api[activeTab.value].response = '{"root": "root"}'
+  }
+  if (UserApiData.value.api[activeTab.value].format === 'html' || UserApiData.value.api[activeTab.value].format === 'xml'){
+    UserApiData.value.api[activeTab.value].response = '<root></root>'
+  }
   const data = handle_request_data()
   ec_api_send_request(data).then(res => {
         if (res.format === 'json') {
@@ -351,7 +357,7 @@ const ace_options = {
         </el-col>
       </el-row>
       <v-ace-editor v-model:value="UserApiData.api[api['id']].response" :lang="UserApiData.api[api['id']]['format']"
-                     theme="chrome" :options="ace_options" class="vue-ace-editor" style="width: 1200px"/>
+                     theme="chrome" :options="ace_options" class="vue-ace-editor" :wrap="true" style="width: 1200px"/>
     </el-tab-pane>
   </el-tabs>
 </template>