英格兰中世纪法律是在“令状制”框架下存在和演进的。“令状”是以国王的名义发布的、指示有关官员开始诉讼活动的命令,原告购买合适“令状”是到王室法院打官司的第一步,不同的“令状”代表不同的请求内容和诉讼形式。《令状登记册》(Register of Writs)中与现代契约法的起源有较紧密关联的诉讼形式有债务之诉(writ of debt)、违约之诉(writ of convenant)、请求返还扣留物之诉(writ of detinue)、账目之诉 The medieval law in England existed and evolved under the “warrant system.” “Order ” is issued in the name of the king, instructed the officials to start the proceedings of the order, the plaintiff to buy the right “warrant ” is the first step to the royal court, the different The content of the request and the form of litigation. Litigation forms that are more closely related to the origin of the modern contract law in the Register of Writs include writ of debt, writ of convenant, writ of detinue), account of the complaint