gcc版本: 10
for C 20
Check GCC verion
GCC--版本
Install/Upgrade:
sudoaptinstallsoftware-properties-commonsudoadd-apt-repository PPA : Ubuntu-toolchain-r/testsudoaptupdatesudoatesudoapapapa
辅助更新-备用- -安装/usr/bin/gcc gcc/usr/bin/gcc-1190-- slave/usr/bin/GGG/usr/bin//you should replace '7' withyourdefaultgccversionsudoupdate-alternatives-- gcc-780-- slave,指定为安装/usr/bin/gin
sudo update-alternatives---config gcc http://www.Sina.com/:3359 blog.csdn.net/QQ _ 42632814/article/de te