打印文件中位置周围的行

def print_lines_around_position(file_path, target_line_number, num_lines_around):
    with open(file_path, 'r') as file:
        lines = file.readlines()

    start_line = max(0, target_line_number - num_lines_around)
    end_line = min(len(lines), target_line_number + num_lines_around + 1)

    for i in range(start_line, end_line):
        print(lines[i])

# 示例使用
file_path = 'example.txt'  # 替换为目标文件的路径
target_line_number = 10  # 替换为目标位置的行数
num_lines_around = 5  # 替换为需要打印的周围行数

print_lines_around_position(file_path, target_line_number, num_lines_around)