From 36feda623db9dc30eb4ef64277be4561a31ea47f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=AE=87=E5=A4=A9?= <yutent.io@gmail.com>
Date: Wed, 26 May 2021 11:58:27 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E6=AD=A3=E7=94=B1=E4=BA=8E=E6=9C=AA?=
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---
 src/scroll/index.wc | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/src/scroll/index.wc b/src/scroll/index.wc
index e59e6b1..8583d6c 100644
--- a/src/scroll/index.wc
+++ b/src/scroll/index.wc
@@ -240,12 +240,16 @@ export default class Scroll {
     // 初始化滚动条的位置和长度
     this._initFn = ev => {
       // 需要减去因为隐藏原生滚动条修正的18像素
-      var width = this.offsetWidth
-      var height = this.offsetHeight
-      var scrollWidth = this.__BOX__.scrollWidth - 18
-      var scrollHeight = this.__BOX__.scrollHeight - 18
-      var yBar = (height * (height / scrollHeight)) >> 0 // 滚动条的高度
-      var xBar = (width * (width / scrollWidth)) >> 0 // 滚动条的宽度
+      let width = this.offsetWidth
+      let height = this.offsetHeight
+      let scrollWidth = this.__BOX__.scrollWidth - 18
+      let scrollHeight = this.__BOX__.scrollHeight - 18
+      let yBar = (height * (height / scrollHeight)) >> 0 // 滚动条的高度
+      let xBar = (width * (width / scrollWidth)) >> 0 // 滚动条的宽度
+
+      // 修正由于未知原因,导致父容器产生滚动距离
+      // 导致的内容被遮挡的bug
+      this.__BOX__.parentNode.scrollTop = 0
 
       // 修复因为内容的margin导致滚动条取值不准确的bug
       if (this.__BOX__.clientHeight - height !== 18) {