一份很好的布朗算例，由Furio Ercoless编写，适合初学者学习。(A simple example of brown dynamics simulation.)

Features Open source, GPL license. Written in python (and a bit of C++), supports Linux, Windows, macOS/OSX. Support of most VASP file formats. Displays structure, unitcell, supercell, charge/probability/spin density, local potential, forces, vel