UART1_SendString("AT+CIPCLOSE=1"); //關閉連接
delay_ms(100);
Second_AT_Command("AT+CIPSHUT","SHUT OK",2); //關閉移動場景
Second_AT_Command("AT+CGCLASS=\"B\"","OK",2);//設置GPRS移動台類別為B,支持包交換和數據交換
Second_AT_Command("AT+CGDCONT=1,\"IP\",\"CMNET\"","OK",2);//設置PDP上下文,互聯網接協議,接入點等信息
Second_AT_Command("AT+CGATT=1","OK",2);//附着GPRS業務
Second_AT_Command("AT+CIPCSGP=1,\"CMNET\"","OK",2);//設置為GPRS連接模式
Second_AT_Command("AT+CIPMUX=0","OK",2);//設置為單路連接
Second_AT_Command("AT+CIPHEAD=1","OK",2);//設置接收數據顯示IP頭(方便判斷數據來源,僅在單路連接有效)
Second_AT_Command("AT+CIPMODE=1","OK",2);//打開透傳功能
Second_AT_Command("AT+CIPCCFG=5,2,200,1,0,200,50","OK",2);//配置透傳模式：單包重發次數:5,間隔400mS認為一幀結束,每次發送200的字節，每次接收200字節
Second_AT_Command((char*)string,"OK",5);//建立連接,進入透傳模式
