little python projects, 一些小的python项目..zip

# 日志文件操作   假定有个gbk编码的日志文件chrom2000，该文件的格式为：首先是日志头，包含日志头：四个字节unsigned int32来表示该日志中的记录个数；接着日志记录一个接一个，直到文件末尾。每一个日志记录的格式为：记录类型，四个字节，UInt32；用户名长度，四个字节，UInt32；用户名，其长度由用户名长度决定；时间长度，四个字节，UInt32，例如时间“ 2016-12-09, 12:23"，起始有空格；信息长度，四个字节，UInt32；信息，长度由信息长度决定。   现要编写程序对日志进行操作如，增加、删除、修改、查询、移动。 十六进制打开后显示如下： ``` 00000000 5B 20 00 00 00 00 00 00 0D 00 00 00 41 64 6D 69 [ ..........Admi 00000010 6E 69 73 74 72 61 74 6F 72 12 00 00 00 20 32 30 nistrator.... 20 00000020 31 34 2D 31 30 2D 30 39 2C 20 31 31 3A 30 38 1A 14-10-09, 11:08. 00000030 00 00 00 B8 C3 D3 C3 BB A7 B5 C7 C2 BC B2 A2 BF ................ 00000040 AA CA BC CA B9 D3 C3 CF B5 CD B3 A1 A3 06 00 00 ................ 00000050 00 0D 00 00 00 41 64 6D 69 6E 69 73 74 72 61 74 .....Administrat 00000060 6F 72 12 00 00 00 20 32 30 31 34 2D 31 30 2D 30 or.... 2014-10-0 00000070 39 2C 20 31 31 3A 30 39 0C 00 00 00 D0 DE B8 C4 9, 11:09........ 00000080 CF B5 CD B3 C5 E4 D6 C3 07 00 00 00 0D 00 00 00 ................ 00000090 41 64 6D 69 6E 69 73 74 72 61 74 6F 72 12 00 00 Administrator... 000000A0 00 20 32 30 31 34 2D 31 30 2D 30 39 2C 20 31 31 . 2014-10-09, 11 000000B0 3A 31 31 10 00 00 00 D0 DE B8 C4 D2 C7 C6 F7 BF :11............. 000000C0 D8 D6 C6 B7 BD B7 A8 07 00 00 00 0D 00 00 00 41 ...............A 000000D0 64 6D 69 6E 69 73 74 72 61 74 6F 72 12 00 00 00 dministrator.... 000000E0 20 32 30 31 34 2D 31 30 2D 30 39 2C 20 31 31 3A 2014-10-09, 11: 000000F0 31 31 10 00 00 00 D0 DE B8 C4 D2 C7 C6 F7 BF D8 11.............. 00000100 D6 C6 B7 BD B7 A8 02 00 00 00 0D 00 00 00 41 64 ..............Ad 00000110 6D 69 6E 69 73 74 72 61 74 6F 72 12 00 00 00 20 ministrator.... 00000120 32 30 31 34 2D 31 30 2D 30 39 2C 20 31 31 3A 31 2014-10-09, 11:1 00000130 31 28 00 00 00 D3 C3 BB A7 B4 E6 B4 A2 CE C4 BC 1(.............. 00000140 FE 3A 20 64 65 66 61 75 6C 74 2E 2A 3A 20 2A 2E .: default.*: *. 00000150 6D 74 68 20 61 6E 64 20 2A 2E 69 66 6F 06 00 00 mth and *.ifo... 00000160 00 0D 00 00 00 41 64 6D 69 6E 69 73 74 72 61 74 .....Administrat ``` * * * ***[java版](https://github.com/JeffyLu/useless-but-powerful/tree/master/Java/%E6%97%A5%E5%BF%97%E6%96%87%E4%BB%B6%E6%93%8D%E4%BD%9C)***