android 环境中adt插件的更新方法

今晚在更新adt时出现了一些问题，从google查找了很多方法根据不太合适，没有成功。最后从官网查阅了文档，解决了adt的更新，方法如下:

Download the ADT Plugin

Start Eclipse, then select Help > Install New Software.
Click Add, in the top-right corner.
In the Add Repository dialog that appears, enter "ADT Plugin" for the Name and the following URL for theLocation:

https://dl-ssl.google.com/android/eclipse/

Note: The Android Developer Tools update site requires a secure connection. Make sure the update site URL you enter starts with HTTPS.

Click OK.
In the Available Software dialog, select the checkbox next to Developer Tools and click Next.
In the next window, you'll see a list of the tools to be downloaded. Click Next.
Read and accept the license agreements, then click Finish.
If you get a security warning saying that the authenticity or validity of the software can't be established, click OK.

When the installation completes, restart Eclipse.

这个解决方法是我最初学习android时安装adt的方式，现在用在更新adt. 记录在此，防止忘记。