A declaration of will made by dialog shall become valid at the time when the opposite party knows the content of will. A declaration of will not made by dialog shall become valid at the time when it reaches the opposite party. If a declaration of will not made by dialog is in the form of data message, and the opposite party has designated a specific system to receive the data message, the declaration of will shall become valid at the time when the data message enters the specific system designated; or in the absence of such designation, the declaration of will shall become valid at the time when the opposite party knows or should have known that the data message has entered its system. 以对话方式作出的意思表示，相对⼈知道其内容时生效。 以⾮对话方式作出的意思表示，到达相对人时生效。以⾮对话⽅式作出的采用数据电文形式的意思表示，相对人指定特定系统接收数据电⽂的，该数据电⽂进⼊该特定系统时⽣效；未指定特定系统的，相对人知道或者应当知道该数据电文进入其系统时生效。