P：
1、安装依赖环境
yum -y install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel
2、下载python包
wget https://www.python.org/ftp/python/3.6.6/Python-3.6.6.tgz
3、解压包，进入文件夹
tar -zxf Python-3.6.6.tgz
cd Python-3.6.6
4、用户配置，指定安装目录
./configure --prefix=/usr/local
如果配置失败，缺少gcc编译环境
yum -y install gcc gcc-c++
5、编译安装python
make
make altinstall
6、修改python链接
cd /usr/bin/
mv python python.backup 重命名
ln -s /usr/local/bin/python3.6 /usr/bin/python
ln -s /usr/local/bin/python3.6 /usr/bin/python3.6
ln -s /usr/local/bin/pip3.6 /usr/bin/pip
7、修改yum文件配置
cd /usr/bin/
ls yum*
vim yum ....
vim /usr/libexec/urlgrabber-ext-down
修改所有文件头部信息 #!/usr/bin/python 为 #!/usr/bin/python2
M:
1、安装mysql
yum -y install mariadb-server
2、启动
systemctl start mariadb.server
systemctl enable mariadb.service 开机自启
3、设置密码
mysqladmin -uroot password "xxxxxx"
4、登录
mysql -uroot -pxxxxxx
\q 退出 \s查看配置信息
6、更改字符集
vim /etc/my.cnf
添加character-set-server=utf8
7、重启myasql
systemctl restart mariadb.service
N：
1、添加源
rpm -Uvh http://nginx.org/packages/centos/7/noarch/RPMS/nginx-release-centos-7-0.el7.ngx.noarch.rpm
2、安装nginx
yum install -y nginx
3、启动nginx
systemctl start nginx.service
systemctl enable nginx.service 开机自启
