引导至Base34编码器/解码器

Question

有没有人对Guid to Base34编码器/解码器有一个不错的代码段，我以前在Google上搜索过它，却从未真正找到任何好的资源。

Answer 1

C＃中的此Number基数转换类可以很容易地扩展为base34（或者如果您认为人们会混淆S和5或b和6或i和j或B以及8或9和g或其他东西，则可以进行其他转换）

Answer 2

Here's a simplified version... It basically takes a string, calculates the MD5 hash, extracts the first four bytes as an unsigned long (effective mapping the string to a 4-byte number), converts that to base36 and then swaps out the "oh" and "zero" chars for "X" and "Y". Then, it ensures the final string is only six chars, padding with "Z" chars if needed.

require 'digest/md5'

# create an easy-to-read 6-digit unique idno
idno = original # starting string
idno = Digest::MD5.digest(idno).unpack("N").first # digest as unsigned long
idno = idno.to_s(36).upcase.tr("0O","XY") # convert to base34 (no "oh" or "zero")
idno = idno[0,6].ljust(6,"Z") # final 6-digit unique idno (pad with "Z" chars)

Answer 3

The key methods here are ToByteArray and this particular constructor .

Encode:

string encodedGuid = Convert.ToBase64String(guid.ToByteArray());

Decode:

Guid guid = new Guid(Convert.FromBase64String(encodedGuid));