Legal analysis: The notice of "No Drinks" drawn up by merchants in advance should be characterized as standard terms. This standard clause formulated by merchants obviously belongs to the situation of "excluding or restricting consumers' rights and aggravating consumers' responsibilities" and other violations of "three rights of consumers". Therefore, according to the law, this clause is invalid and illegal.

legal basis: article 26 of the law of the people's Republic of China on the protection of consumers' rights and interests, where a business operator uses standard clauses in business activities, it shall draw consumers' attention to the quantity and quality, price or expenses, time limit and method of performance, safety precautions, risk warning, after-sales service, civil liability and other matters of great interest to consumers in a conspicuous way, and explain them according to consumers' requirements. Operators are not allowed to make unfair and unreasonable provisions to consumers, such as excluding or restricting consumers' rights, reducing or exempting operators' responsibilities, and aggravating consumers' responsibilities, by means of standard terms, notices, statements, shop notices, etc., and are not allowed to use standard terms and use technical means to force transactions.