python编写文件阅读器

最近在学习python老师布置了一个作业写一个文件阅读器:

要求如下:

可上下翻页

有自动翻页阅读和手动控制

实战:

代码如下:

time
tl = []   readers(path,lines=,auto=,times=):
    (path,) f:
        f.seek(,)         last = f.tell()     f.seek()           i (lines):      (f.readline())
        tl.append(f.tell())         auto == :            f.tell() < last:
                i (lines):
                    (f.readline())
                time.sleep(times)
        :
            f.tell() < last:
                contorl = ()
                contorl == contorl == :
                    ()
                    contorl == contorl ==:
                    i (lines):
                        (f.readline()),
                    tl.append(f.tell())

                contorl == contorl ==:
                    (tl) == :
                        ()
                        (tl) == :
                        f.seek()
                        i (lines):
                            (f.readline()),
                        tl.pop()
                        :
                        f.seek(tl[-])
                        i (lines):
                            (f.readline()),
                        tl.pop()

            ()
__name__ == :
    readers()