diff --git a/src/views/phylogeneticAnalysis/evolutionaryTree.vue b/src/views/phylogeneticAnalysis/evolutionaryTree.vue
index 1dffeeb..a9ff7da 100644
--- a/src/views/phylogeneticAnalysis/evolutionaryTree.vue
+++ b/src/views/phylogeneticAnalysis/evolutionaryTree.vue
@@ -41,7 +41,12 @@
         <el-table-column prop="e" label="分析工具"></el-table-column>
         <el-table-column label="详情">
           <el-button size="mini" type="text" class="detail-btn">
-            <a href="" target="_blank" rel="noopener noreferrer">预览</a>
+            <a
+              href="https://smart-1259258654.cos.ap-guangzhou.myqcloud.com/pdf/82010000990%E8%BF%9B%E5%8C%96%E6%A0%91%E5%88%86%E6%9E%90%E6%8A%A5%E5%91%8A.pdf"
+              target="_blank"
+              rel="noopener noreferrer"
+              >预览</a
+            >
           </el-button>
         </el-table-column>
       </el-table>