编译安装nginx的时候出现
libpcre3-dev : Depends: libpcre3 (= 1:8.31-2ubuntu2.3) but 2:8.35-7.1ubuntu1 is installed
依赖1:831-2版本的libpcre3
经查找
sudo apt-get install libpcre3=1:8.31-2ubuntu2.3 libpcre3-dev=1:8.31-2ubuntu2.3
直接指定版本安装一次即可
资料：https://blog.csdn.net/volsenberg/article/details/74910572
https://www.cnblogs.com/EasonJim/p/7144017.html