fix: 没钓到鱼提示修正

src/pages/fishing/Fishing.vue

@@ -6,8 +6,8 @@
             <el-button type="primary" @click="handleFish">开始钓鱼</el-button>
             <el-button @click="goHome" style="margin-left: 10px">返回</el-button>
 
-            <div class="result" v-if="resultMessage">
-                <p>{{ resultMessage }}</p>
+            <div class="result">
+                <p v-if="resultMessage">{{ resultMessage }}</p>
                 <p v-if="nextPullTime">下次可钓鱼时间：{{ nextPullTime }}</p>
             </div>
         </div>
@@ -41,6 +41,7 @@ const handleFish = async () => {
             }
         } else {
             nextPullTime.value = res.message
+            resultMessage.value = ''
             ElMessage.error(res.message || '钓鱼失败')
         }
     } catch (err) {