ubuntu安装nginx，由于80端口已经被占用，sudo apt-get install nginx安装一半异常退出，报错误：

　　dpkg: error processing package nginx (--configure):

　　dependency problems - leaving unconfigured

　　No apport report written because the error message indicates its a followup error from a previous failure.

　　Errors were encountered while processing:

　　nginx-core

　　nginx

　　E: Sub-process /usr/bin/dpkg returned an error code (1)

　　再往上查询会看到错误

　　nginx: [emerg] bind() to [::]:80 failed (98: Address already in use)

　　修复办法：

　　1.将80端口解绑，已占用的程序改用其他端口，将提示的错误解决后

　　2.运行以下命令卸载一半的安装:

　　sudo apt-get remove nginx*

　　sudo apt-get autoremove

　　sudo apt-get install nginx即可重新安装