1.apt-get update，輸入該命令按回車鍵
2.輸入該命令按回車鍵：
apt-get install build-essential zlib1g-dev libncurses5-dev libgdbm-dev libnss3-dev libssl-dev libreadline-dev libffi-dev wget -y
3.curl -O https://www.python.org/ftp/python/3.7.3/Python-3.7.3.tar.xz，輸入該命令按回車鍵
4.tar -xf Python-3.7.3.tar.xz，輸入該命令按回車鍵
5.cd Python-3.7.3，輸入該命令按回車鍵
6../configure --enable-optimizations，輸入該命令按回車鍵
7.make -j 8，輸入該命令按回車鍵
8.make altinstall，輸入該命令按回車鍵
9.python3.7 -V，輸入該命令按回車鍵查看已安裝好
