flac2D&3d配套代码，帮助flac的初学者尽快解决问题，非常实用。-flac2D & 3d supporting code, to help solve the problem as soon as possible flac beginners, very practical.

Flac 3D内置语言fish编程，用于模拟实验室单轴压缩试验。(This code is used in simulated laboratory uniaxial compression tests.)