A.RRCConnectionSetupRequest
B.RRCConnectionSetupComplete
C.SecurityModeCommand
D.SecurityModeComplete
A.S1AP_UplinkNasTransportMsg
B.S1AP_DownlinkNasTransportMsg
C.S1AP_InitialUeMessageMsg
D.RrcConnectionSetupComplete
A.内嵌代码的每一行,都比外面的if语句的缩进更多
B.代码以“begin”开头,“end”结尾
C.每行代码的缩进都一致
D.代码块被封装在花括号中