中文说明：资源描述本题我采用了两种算法来做。算法1是先计算模极大曲线的Lipschitz指数，Lipschitz指数绝对值小于a则判定为阶梯型边界，a为接近0的常数。算法2计算小于r且大于1/r则判定为阶梯型边界，r为大于1但很接近1的常数。
English Description：
Application backgroundI have used two algorithms to do. Algorithm 1 is the first to calculate the modulus maximum curve of the Lipschitz index, the absolute value of the Lipschitz index is less than a is determined to be a step type boundary, a is close to 0 of the constant. Algorithm 2 is less than R and more than 1/r is determined to be step type boundary, R is greater than 1 but is close to 1.