优化菜单的展示逻辑，增加外链的展示

jshERP-web/src/components/menu/index.js

@@ -166,8 +166,12 @@ export default {
     }
     const on = {
       select: obj => {
+        if(obj.key.indexOf('http://')>-1) {
+          window.open(obj.key)
+        } else {
           this.selectedKeys = obj.selectedKeys
           this.$emit('select', obj)
+        }
       },
       openChange: this.onOpenChange
     }