杨辉三角，又称贾宪三角形，帕斯卡三角形，是二项式系数在三角形中的一种几何排列，程序可以实现杨辉三角的排列。-Yanghui Triangle, also known as Jia Xian triangle, Pascal' s triangle is a binomial coefficients in a triangle geometry, the program can achieve the arrangement of Yanghui Triangle.