Why is the 14th character in a GUID generated by Visual Studio sometimes lowercase

问题

Occasionally when I generate a GUID using visual studio, the 14th hex character is lowercase while the rest of the hex digits are uppercase.

Cause a bit of problem when comparing the string representations of two GUIDs. Now I always compare the binary equivalents to be safe.

回答1:

Yes, this is a known bug. But you shouldn't be making string comparisons; use Guid.Equals instead.

来源：https://stackoverflow.com/questions/872298/why-is-the-14th-character-in-a-guid-generated-by-visual-studio-sometimes-lowerca