摘要： UART1_SendString("AT+CIPCLOSE=1"); //关闭连接 delay_ms(100); Second_AT_Command("AT+CIPSHUT","SHUT OK",2); //关闭移动场景 Second_AT_Command("AT+CGCLASS=\"B\"","OK",2);//设置GPRS移动台类别为B,支持包交换和数据交换 Second_AT... 阅读全文