The error "no operations allowed after statement closed" typically occurs when trying to execute a database query on a closed statement object. Make sure that you're not calling any methods on a statement after it has been closed. Check your code and make sure to properly handle the lifecycle of your statement objects, including opening, executing, and closing them in the correct order. [2024-04-25 08:26:40 | AI写代码神器 | 389点数解答]