Smalltalk中数据与行为的严格交替
Smalltalk programs strictly alternate between data and behaviour. Messages (the only kind of data in Smalltalk) are implicit, constructed fresh at each point in the program method call syntax is...
Smalltalk程序严格区分数据和行为，消息是唯一的数据类型，隐式构造且仅包含对象引用。与其他语言不同，Smalltalk不允许将消息作为值，这限制了其值的范围。
