给我一份python代码，实现一个简单的二维元胞自动机

好的，这是一份简单的二维元胞自动机的 Python 代码：

import numpy as np

def evolve(cells):
    # 获取元胞自动机的当前状态
    curr_state = cells[1:-1,1:-1]
    # 初始化下一个状态
    next_state = np.zeros(curr_state.shape, dtype=int)
    # 遍历所有元胞
    for i in range(1, cells.shape[0] - 1):
        for j in range(1, cells.shape[1] - 1):
            # 计算周围元胞细胞数量
            num_neighbors = (cells[i-1:i+2,j-1:j+2] - curr_state[i-1][j-1]).sum()
            # 根据元胞自动机的规则更新下一个状态
            if curr_state[i-1][j-1] == 1 and num_neighbors in [2,3]:
                next_state[i-1][j-1] = 1
            elif curr_state[i-1][j-1] == 0 and num_neighbors == 3:
                next_state[i-1][j-1] = 1
    # 更新元胞自动机的状态
    cells[1:-1,1:-1] = next_state
    return cells

def main():
    # 初始化元胞自动机
    cells = np.zeros((5,5), dtype=int)
    cells[2,2] = 1
    cells[2,3] = 1
    cells[3,3] = 1

    # 进行多次迭代
    for i in range(10):
        print(cells)
        cells = evolve(cells)

if __name__ == '__main__':
    main()

这段代码实现了一个简单的二维元胞自动机，可以输出多次迭代后的元胞自动机的状态。

希望这份代码能够帮到你。