fix issue

web_src/js/components/EditTopics.vue

@@ -209,7 +209,7 @@ export default {
         })
     },
     postTopic(){
-        if(showInputValue){
+        if(!this.showInputValue){
             return
         }
         const patter = /^[\u4e00-\u9fa5a-zA-Z0-9][\u4e00-\u9fa5a-zA-Z0-9-]{0,34}$/