How to assign a value to [any]

问题

When I set c to a

var a: [Any]
var c: Array<PostCategory>

error shown:

cannot convert value of type 'Array' to expected argument type [Any]

how to solve the problem?

回答1:

The error message is a bit misleading but try initializing the array before assigning it:

var c: Array<PostCategory> = []

...or...

var c = Array<PostCategory>()

回答2:

I bet your PostCategory is a struct. Apparently struct arrays aren't convertible to an Any array. This is weird because all types conforms to the Any protocol.

If you change the PostCategory to a class instead, it should work fine. You might need to create a new initializer for the class though, since classes doesn't give you the same default initializer as a struct does.

来源：https://stackoverflow.com/questions/37186934/how-to-assign-a-value-to-any