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a==b            √
a.Equals(b)            √
object.Equals(a,b)  √  √  √  √  √  √
Guid.Equals(a,b)  √  √  √  √  √  √
a.ToString()  X  √  X  X  √  √
a.HasValue  √  √  √  √  √  √

Last edited Nov 19, 2012 at 4:22 AM by zhaoxuemeng, version 8

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