修改k线退出来后显示不了首页

pages/exchange/index.vue

@@ -2,7 +2,8 @@
   <v-page>
     <v-header :leftClick="() => {}" :left-arrow="false">
       <template #left>
-        <view @click="$back(-1)">
+        <view @click="leftback">
+			<!-- $back(-1) -->
           <i class="van-icon van-icon-arrow-left van-nav-bar__arrow"></i>
         </view>
         <view
@@ -498,6 +499,9 @@ export default {
         }
       });
     },
+	leftback(){
+		this._router.push("/pages/base/index");
+	}
   },
   onUnload() {
     this.isShow = false;