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把原来的静态IP从150改成151后，执行/etc/init.d/networking restart 后，150和151同时生效了。如下ens33，151IP变成secondary sip@ubuntu:~$ ip addr 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen

 sudo vim /etc/network/interfaces 修改如下 # The primary network interface auto ens33 #iface ens33 inet dhcp iface ens33 inet static address 192.168.1.150 netmask 255.255.255.0 gateway 192.168.1.1 增加D...

错误如下 CMake Error in CMakeLists.txt: No CMAKE_CXX_COMPILER could be found. Tell CMake where to find the compiler by setting either the environment variable "CXX" or the CMake cache entry CMA...

error while loading shared libraries:libmpfr.so.4: cannot open shared object file: No such file or directory. 解决： sudo ln -s /usr/lib/x86_64-linux-gnu/libmpfr.so.6 /usr/lib/x86_64-linux-gnu/libmpfr.so...