How to use dictionary types as generic constraints in Swift

Today, the group participants Someone made such a problem,Why use the characteristic dictionary type as a generic type constraint,It will inevitably error?

Obviously,He said very clearly,"You can not be from a non-agreement、Non-type class inheritance. "。Obviously,The dictionary is a generic structure...

Then the solution is also very clear ideas,Create[……]

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Swift Lane Stack implementation

Today in practice design patterns when there is no sudden discovery Swift stack - Stack class is。Since I was shining Java version of the design patterns to learn,So I had no choice but to implement a look at the。

But speaking,In Apple's official manual, "generic" chapter really have a stack of chestnuts,It is the structure implemented。This is actually in line with the Swift's style - after all,, S[……]

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