fixed #554

examples/routers/input.vue

@@ -1,13 +1,20 @@
 <template>
-    <div>
-        <Input v-model="value" placeholder="请输入..." style="width: 150px" icon="ios-clock-outline"></Input>
+    <div style="width: 300px;">
+        <i-input v-model="value11" icon="ios-clock-outline">
+            <span slot="prepend">http://</span>
+        </i-input>
     </div>
 </template>
 <script>
     export default {
         data () {
             return {
-                value: ''
+                value11: '',
+                value12: '',
+                value13: '',
+                select1: 'http',
+                select2: 'com',
+                select3: 'day'
             }
         }
     }