IM测试，下一步页面调整

pages/im/group/index.vue

@@ -0,0 +1,20 @@
+<template>
+    <div>
+        <u-button @click="toIndex">会首页</u-button>
+    </div>
+</template>
+
+<script>
+    export default {
+        methods: {
+            toIndex() {
+                uni.switchTab({
+                    url: '/pages/im/index'
+                })
+            }
+        }
+    }
+</script>
+
+<style>
+</style>