预约合同的产生和成立在企业的经济行为中,常常会遇到这种情况,当事人双方订立合同的条件尚未成熟,但又不愿意失去交易机会,此时往往会进行预约。为这种预约所签订的合同一般称之为预约合同,也可以称为预约、预备合同和预备性合同等。对预约合同的概念,我国立法上目前还没有明 Occurrence and establishment of appointment contract In the economic activities of enterprises, this situation is often encountered. The conditions for the parties to enter into the contract are not yet mature, but do not want to lose trading opportunities, this time often make an appointment. The contracts signed for such appointments are generally referred to as appointment contracts, which may also be called appointments, preparatory contracts and preparatory contracts. The concept of appointment contract, our country's legislation is not yet clear