如何仅在两个输入文件范围重叠时打印它们

def print_overlapping_ranges(file1, file2):
    # 读取文件内容
    with open(file1, 'r') as f1, open(file2, 'r') as f2:
        content1 = f1.readlines()
        content2 = f2.readlines()

    # 确定文件范围
    range1 = len(content1)
    range2 = len(content2)

    # 判断范围是否重叠
    if range1 > 0 and range2 > 0 and range1 >= range2:
        start = max(range1 - range2, 0)
        end = range1
        overlapping_content = content1[start:end]
        print("文件1范围：{}-{}".format(start, end))
        print("文件2范围：{}-{}".format(0, range2))
        print("重叠内容：")
        for line in overlapping_content:
            print(line.strip())
    elif range1 > 0 and range2 > 0 and range1 < range2:
        start = max(range2 - range1, 0)
        end = range2
        overlapping_content = content2[start:end]
        print("文件1范围：{}-{}".format(0, range1))
        print("文件2范围：{}-{}".format(start, end))
        print("重叠内容：")
        for line in overlapping_content:
            print(line.strip())
    else:
        print("文件范围不重叠。")

# 调用函数并传入文件路径
print_overlapping_ranges("file1.txt", "file2.txt")