合同一旦有效成立,即对当事人产生相当于法律的效力。根据“合同关系”原则,合同的效力只及合同的当事人。因此,在谈涉外经济合同工作中应注意的几个法律问题时,应先从当事人谈起,一要了解自己,二要了解对方,知己知彼、百战不殆也。一、要了解自己并摆好自己的位置 Once the contract is validly established, it shall have the equivalent legal effect on the parties. According to the principle of “contractual relationship”, the validity of the contract is only to the parties to the contract. Therefore, when discussing several legal issues that should be paid attention to in the work concerning foreign economic contracts, we should start with the parties, first, we must understand ourselves, second, we must understand each other, know ourselves and ourselves, and know ourselves well. First, to understand yourself and put your own position