Remember the first time to write Hello World with vim

I am installing Ubuntu under VM, using Vim to write run Hello World

Open Terminal in Ubuntu

To check if g++ or GCC is installed, enter the command sudo apt-get install gcc

Check if Vim is installed, enter command to install sudo apt-get install vim

Then enter the command su root , enter the password into root mode , enter the input command VI hello.cpp return, so that a hello.cpp new file name is successfully established

This will pop up a page, press keyboard I to enter the insertion mode , you can edit the Hello.cpp program

When the edits are complete, press ESC to return to normal mode, where the keyboard cannot modify the program.

shortcut key shift+: can enter the terminal command mode, at this time input Wq to save The program

The page bounces back to the terminal, at which point the input command sudo gcc hello.cpp-o hello to compile

Where Hello.cpp is the CPP file you just built, the hello after-o is equivalent to a running program, the two cannot be the same name

Compile if the error, the terminal input VI hello.cpp into the previous compilation mode, to modify the program

Compile if there is no error, you can enter the command./hello Run the program.

Remember the first time to write Hello World with vim