}
CTR_L; //RS485处于接
编译器提示出现的错误是:1../USART.c:235: error: 'buf' undeclared (first use in this function)
2.../USART.c:235: error: (Each undeclared identifier is reported only once
3。../USART.c:235: error: for each function it appears in.)
4../USART.c:256: error: expected identifier or '(' before '{' token
不解的地方是,我根本没用buf这个数组,但是编译出现错误。