基于visual studio .net2003的VB开发的数独游戏，数独游戏最初是根据欧拉的理论出现的，目前风靡欧美。-based on visual studio. Net2003 in the VB sudoku games, the first few games alone is Euler's theory appears that swept Europe and the United States.

离散数学里面的欧拉回路问题，先输入顶点数和边数，然后把边的两个顶点输入。-Discrete Mathematics inside loop Euler problem, enter the number of vertices and edges, and then the input side of the two vertices.