面包屑处理

middle.html

@@ -1241,18 +1241,14 @@
 </html>
 <script src="https://cdnjs.cloudflare.com/ajax/libs/html2pdf.js/0.10.1/html2pdf.bundle.min.js"></script>
 <script>
-  // window.onload = function() {
-  //   console.log("11111111")
-    
-  // }
-  
-
-  let menuName = localStorage.getItem("menuName");
+let menuName = localStorage.getItem("menuName");
 //   console.log("menuName===========",menuName)
-    let list = menuName.split(">");
-    // console.log(list,'list=========');
-    document.getElementById("breadcrumb").innerHTML  = 
-    `当前位置：${list[0]} > ${list[1]} > <span class="breadcrumb_item">${list[2]}</span>`;
+let list = menuName.split(">");
+const prev = list.slice(0, -1).join(' > ');
+const last = list[list.length - 1];
+// console.log(list,'list=========');
+document.getElementById("breadcrumb").innerHTML  = 
+`当前位置：${prev ? prev + ' > ' : ''}<span class="breadcrumb_item">${last}</span>`;
 
 function onBack(){
     window.history.back();