一个简单的艺术画廊管理系统，在VS环境中编写，有简单的增加，列单，交易等功能，可以继续补充完善，很好的初学者入手教案。-a simple art gallery management system, the VS environment, which had been prepared, a simple, single out, transaction capabilities will continue to supplement and improve the good beginners

The gauss, abbreviated as G or Gs, is the cgs unit of measurement of a magnetic field B, which is also known as the magnetic flux density or the magnetic induction . It is named after German mathematician and physicist Carl Friedrich Gauss. One gauss