Python 函数实现打印特殊图案：参数输入控制图案大小

def print_pattern(n):\n for i in range(1, n+1):\n for j in range(1, i+1):\n print("", end="")\n print()\n for i in range(n-1, 0, -1):\n for j in range(1, i+1):\n print("", end="")\n print()\n\n# 测试\nprint_pattern(1)\nprint("---------")\nprint_pattern(2)\nprint("---------")\nprint_pattern(3)\nprint("---------")\nprint_pattern(4)