F＃abstractclass和abstractclassattribute之间有什么区别

Question

F# What is the difference between the [ <AbstractClass >] and [ <AbstractClassAttribute >], both seem to label a type as abstract.

[ <AbstractClass >] https://msdn.microsoft.com/en-us/library/dd483471.aspx

[ <AbstractClassAttribute >] https://msdn.microsoft.com/en-us/library/ee370513.aspx

Answer 1

There is no difference, they both refer to AbstractClassAttribute . In F# (and C#), you can optionally omit the Attribute suffix when attaching an attribute with [<AttributeName>] .

See: https://msdn.microsoft.com/en-us/library/dd233179.aspx#Anchor_1

Note that if you wished to refer to the attribute in normal code, you'd have to use the full name.

let example = AbstractClass() // ERROR
let example = AbstractClassAttribute() // OK