tar zxvf *** 解压
gcc -m64 -lstdc++ -Wall -o r r.cpp 编译 https://blog.csdn.net/zhouchang3/article/details/77624214
tar zxvf *** 解压
gcc -m64 -lstdc++ -Wall -o r r.cpp 编译 https://blog.csdn.net/zhouchang3/article/details/77624214
su vim /etc/sudoers yy root = ALL ALL p 修改爲 wangfj = ALL ALL