使select单选时不打钩

style/components/select.less

@@ -7,6 +7,22 @@
   float: right;
   font-weight: bold;
 }
+.selected_icon() {
+  position: relative;
+  &:after {
+    .iconfont-size-under-12px(9px);
+    display: inline-block;
+    content: '\e613';
+    font-family: 'anticon';
+    font-weight: bold;
+    position: absolute;
+    top: 6px;
+    right: 0;
+    background: tint(@primary-color, 90%);
+    padding-right: 16px;
+    color: @primary-color;
+  }
+}
 
 .@{selectPrefixCls} {
   box-sizing: border-box;
@@ -188,6 +204,12 @@
     }
   }
 
+  .@{selectPrefixCls}-selection--multiple + .@{selectPrefixCls}-dropdown {
+    .@{selectPrefixCls}-dropdown-menu-item-selected {
+      .selected_icon();
+    }
+  }
+
   &-dropdown {
     display: none;
     background-color: white;
@@ -228,22 +250,9 @@
           background-color: tint(@primary-color, 90%) !important;
         }
 
-        &-selected {
-          position: relative;
-          &:after {
-            .iconfont-size-under-12px(9px);
-            display: inline-block;
-            content: '\e613';
-            font-family: 'anticon';
-            font-weight: bold;
-            position: absolute;
-            top: 6px;
-            right: 0;
-            background: tint(@primary-color, 90%);
-            padding-right: 16px;
-            color: @primary-color;
-          }
-        }
+        // &-selected {
+        //   .selected_icon();
+        // }
 
         &-disabled {
           color: #ccc;