lists2.scrollTop
时间: 2023-09-08 17:09:10 浏览: 50
对于获取或设置一个元素的滚动位置,你可以使用 `scrollTop` 属性。这个属性可以用于获取或设置一个元素的垂直滚动位置。例如,如果你有一个名为 `lists2` 的元素,你可以使用下面的代码获取它的滚动位置:
```javascript
var scrollTop = lists2.scrollTop;
```
如果你想设置 `lists2` 元素的滚动位置,你可以使用下面的代码:
```javascript
lists2.scrollTop = 100; // 将滚动位置设置为 100
```
请注意,`scrollTop` 的值表示了元素顶部到可见区域顶部的距离。
相关问题
Reading package lists... Done
\Reading packag lists... D\是Ubuntu系统中使用p-g命令时的一条提示信息,表示已经成功读取了软件包列表。这个提示信息通常会在执行p-g up命令后出现,该命令用于更新软件包列表。如果在执行p-g ins命令时出现这个提示信息,那么说明软件包列表已经成功更新,系统已经准备好安装软件包了。\n\
Error: Timeout was reached Reading package lists... Done
This error message usually indicates a problem with the internet connection or the server that the package lists are being downloaded from.
Here are a few steps you can take to troubleshoot this error:
1. Check your internet connection: Make sure your device is connected to the internet and that the connection is stable. Try opening a web browser and loading a website to see if you can access the internet.
2. Update your package manager: Run the command `sudo apt-get update` to update your package manager. This will refresh the package lists and may resolve the issue.
3. Try a different server: Sometimes the server that you are downloading package lists from may be experiencing issues. Try switching to a different server by running the command `sudo apt-get update --fix-missing`.
4. Check for proxy settings: If you are behind a proxy, make sure the proxy settings are correctly configured in your system. You can check the settings by running the command `env | grep -i proxy`.
5. Wait and try again later: If none of the above steps work, the issue may be with the server that you are trying to download the package lists from. Wait for a few hours and try again later.