从文件中读取行范围，并在另一个文件中查找该范围内的最大值

# 读取文件内容并选择行范围
def read_lines(file_path, start_line, end_line):
    with open(file_path, 'r') as file:
        lines = file.readlines()
        selected_lines = lines[start_line-1:end_line]
        return selected_lines

# 在选定的行范围中查找最大值
def find_max_value(lines):
    max_value = float('-inf')
    for line in lines:
        value = float(line.strip())
        if value > max_value:
            max_value = value
    return max_value

# 主函数
def main():
    file1_path = 'file1.txt'
    file2_path = 'file2.txt'
    start_line = 3
    end_line = 7

    # 读取文件1的行范围
    selected_lines = read_lines(file1_path, start_line, end_line)

    # 将选定的行内容保存到临时文件
    with open('temp.txt', 'w') as temp_file:
        temp_file.writelines(selected_lines)

    # 在文件2中查找最大值
    max_value = find_max_value(read_lines(file2_path, 1, float('inf')))

    print("范围内的最大值为:", max_value)

if __name__ == '__main__':
    main()