mirror of
https://github.com/Sevichecc/Urara-Blog.git
synced 2025-05-04 08:09:30 +08:00
43 lines
No EOL
572 B
Text
43 lines
No EOL
572 B
Text
struct Foo(T)
|
|
end
|
|
|
|
Foo(Int32)
|
|
|
|
# ---
|
|
struct Foo
|
|
end
|
|
|
|
# struct Bar < Foo
|
|
# end
|
|
# Error in ./struct/struct.cr:10: can't extend non-abstract struct Foo
|
|
|
|
abstract struct AbstractFoo
|
|
end
|
|
|
|
struct Bar < AbstractFoo
|
|
end
|
|
|
|
# ---
|
|
struct Test
|
|
def initialize(@test : String)
|
|
end
|
|
end
|
|
|
|
Test.new("foo")
|
|
|
|
# ---
|
|
struct User
|
|
property name, age
|
|
|
|
def initialize(@name : String, @age : Int32)
|
|
end
|
|
|
|
def print
|
|
puts "#{age} - #{name}"
|
|
end
|
|
end
|
|
|
|
puts User.new("osman", 3).name
|
|
User.new("ali", 9).print
|
|
|
|
# From https://github.com/askn/crystal-by-example/blob/master/struct/struct.cr |