fixed #1568 and close #1593

examples/routers/tooltip.vue

@@ -1,6 +1,6 @@
 <template>
     <div>
-        <Tooltip placement="top" transfer content="Tooltip 文字提示" :delay="1000">
+        <Tooltip always placement="top" transfer content="Tooltip 文字提示" :delay="1000">
             <Button @click="disabled = true">延时1秒显示</Button>
         </Tooltip>
         <Tooltip placement="top" transfer content="Tooltip 文字提示">

src/components/tooltip/tooltip.vue

@@ -85,6 +85,11 @@
                     }
                 }
             }
+        },
+        mounted () {
+            if (this.always) {
+                this.updatePopper();
+            }
         }
     };
 </script>