新增 插入 和 删除 按钮

qingdan.html

@@ -44,6 +44,12 @@
                   <div class="collapse navbar-collapse" id="navbarNav">
                     <ul class="navbar-nav">
                       <li class="nav-item">
+                        <a class="nav-link text-primary" href="#"><i class="fa fa-share" aria-hidden="true"></i>插入</a>
+                      </li>
+                      <li class="nav-item">
+                        <a class="nav-link text-primary" href="#"><i class="fa fa-remove" aria-hidden="true"></i>删除</a>
+                      </li>
+                      <li class="nav-item">
                         <a class="nav-link text-primary" href="#"><i class="fa fa-arrow-left" aria-hidden="true"></i>升级</a>
                       </li>
                       <li class="nav-item">