Python 将一个 512 字节的零块写入 /dev/sda 可以工作，但不能正常工作

Question

在这里，我正在尝试创建一个函数来（最终）支持使用多种规范擦除驱动器。我遇到的问题是，当我尝试将 ZeroBlock 写入磁盘时，它会被写入，但是代码的行为就像它失败了一样。我说它有效的原因是它从我的测试系统中的驱动器中清除了引导扇区

def WipeDisk(Drive, WipeSpec, Passes):
    DiskSize = int(System.HDD[Drive].Size)
    DiskSect = int(System.HDD[Drive].Sectors())
    SectSize = int(System.HDD[Drive].SectSz)
    System.HDD[Drive].Start = time.time()
    if (WipeSpec == "Zero"):
            with open("/dev/zero", "rb") as Zero:
                    ZeroBlock = Zero.read(SectSize)
            Zero.close()
            Pass = 0
            with open(System.HDD[Drive].Device, "wb") as Disk:
                    while (Pass < Passes):
                            Current = 1
                            while (Current < DiskSect):
                                    if (Disk.write(ZeroBlock)):
                                            if (Current %((DiskSect*Passes)/100) == 0):
                                                    (variable updates)
                                            if (Current == DiskSect):
                                                    Pass = (Pass+1)
                                    else:
                                            System.HDD[Drive].Error = 1
                                            Pass = Passes
                                            break
                                    Current = (Current+1)
                    if (Pass == Passes):
                            System.HDD[Drive].Current = Current
                            System.HDD[Drive].Percent = "100"
                            System.HDD[Drive].Complete = 1
                    Disk.close()
    else:
            print("Unknown Wipe Specification: "+WipeSpec)

Answer 1

The documentation for file.write 说：

将字符串写入文件。没有返回值。

您似乎错误地假设write 返回某个值，指示写入是否成功。没有。