yum -y update

# 安装netstat
yum install net-tools -y

# 文件上传下载
yum -y install lrzsz

yum install gcc tcl wget ftp tree vim make

yum -y install yum-utils

# 安装 dnf
yum install epel-release
yum install dnf

# 安装Python(默认3.6.8)
yum -y groupinstall "Development tools"
yum -y install python36-devel
## centos7中不推荐替换默认软连接，会导致yum不可用
ln -s /usr/bin/python3 /usr/bin/python
ln -s /usr/bin/python3.6 /usr/bin/python
## 测试
python -V 

# 安装pip
yum -y install epel-release
yum -y install python-pip 或者 yum -y install python3-pip
## 或者
curl https://bootstrap.pypa.io/get-pip.py | python3
## 测试
pip --version 或者 pip3 --version
## 如果报错：No module named _internal.cli.main
vim /usr/local/bin/pip
## 然后将首行的 #!/usr/bin/python 改为 #!/usr/bin/python3

# 安装 git
yum install git
git --version
## 配置
git config --global user.name "2771732182@qq.com"
git config --global user.email "2771732182@qq.com"
git config --list