可以参考SIM800系列_IP_应用文档,测试服务器已经开启了 AT+SAPBR=3,1,"Contype","GPRS" OK AT+SAPBR=3,1,"APN","CMNET" OK AT+SAPBR=1,1 OK AT+SAPBR=2,1 +SAPBR: 1,1,"10.245.106.212" OK AT+FTPCID=1 OK AT+FTPSERV="123.59.194.214" OK AT+FTPUN="zjiot" OK AT+FTPPW="123456" OK AT+FTPGETPATH="./" OK AT+FTPLIST=1 OK +FTPLIST: 1,1 AT+FTPLIST=2,1024 +FTPLIST: 2,66 -rw-r--r-- 1 0 0 9 Jan 08 14:52 test.txt OK +FTPLIST: 1,0 AT+FTPGETNAME="test.txt" OK AT+FTPGET=1 OK +FTPGET: 1,1 AT+FTPGET=2,1024 +FTPGET: 2,9 abcd1234 OK