A simple illustration is a vending machine; when it receives enough money, it transitions into a state where the selection buttons become active.
售货机可以作为一个简单的例子，当它接收到足够的钱则转换到激活选择按钮的状态。
A simple illustration is a vending machine; when it receives enough money, it transitions into a state where the selection buttons become active.
售货机可以作为一个简单的例子，当它接收到足够的钱则转换到激活选择按钮的状态。
应用推荐