Python函数打印星号图案：详解及代码示例

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