declarative expression

基本解釋

For example, some problems lend themselves to more succinct expression as a state machine than as a set of declarative rules.
比如，有些問題使用狀態(tài)機(jī)比使用聲明性規(guī)則具有更加簡(jiǎn)潔的表述。
This is the first time that this example is using a relation as a declarative statement to define an expression (in other words, a value assignment) instead of using it for model-to-model mapping.
這是本例子第一次把關(guān)聯(lián)作為一個(gè)定義表達(dá)式（換句話說，一個(gè)賦值語句）的聲明性陳述來使用，而不是用它作模型到模型的映射。