10/01/27 13:39:12
>>449
使用言語：Io
Number even:=method(self % 2 == 0)
Io> 23 even
==> false
Io> 24 even
==> true
10/01/27 13:39:12
>>449
使用言語：Io
Number even:=method(self % 2 == 0)
Io> 23 even
==> false
Io> 24 even
==> true
10/01/27 13:39:12
>>449
使用言語：Io
Number even:=method(self % 2 == 0)
Io> 23 even
==> false
Io> 24 even
==> true