显示屏幕的例子

C*-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
C* $DispSFL01 - Survey Type LookUp
C*-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
C $DispSFL01 begsr
C*
C exsr $ClearSFL01
C exsr $LoadSFL01
C exsr $CLRMSG
C*
C dow @Scrn01 = 'Y'
C*
C write SUB01FKEY
C write MSGCTL 99
C exfmt SUB01CTL
C*
C if CURREC <> *zeros
C eval RRn01 = CURREC
C eval ScRRn01 = CURREC
C endif
C*
C eval SavScRRn01 = 1
C if ScRRn01 > 0
C eval SavScRRn01 = ScRRn01
C endif
C*
C exsr $CLRMSG
C*
C select
C*
C* F3 pressed end the program
C*
C when *in03 = *on
C eval @Scrn01 = 'N'
C*
C* F6=Add
C*
C when *in06 = *on
C eval ChangedRecord = 'Y'
C eval ScreenMode = 'ADD'
C exsr $Screen01
*
* F12=Return
*
C when *in12 = *on
C eval @Scrn01 = 'N'
*
* other
*
C other
C if RRn01 > 0
C exsr $Process01
C endif
*
C endsl
*
C if ChangedRecord = 'Y' and ScreenError = 'N'
C exsr $ClearSFL01
C exsr $LoadSFL01
C eval ScreenError = 'N'
C eval ChangedRecord = 'N'
C eval ScRRn01 = SavScRRn01
C endif
*
C enddo
*
C endsr
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原文地址:https://www.cnblogs.com/wildfish/p/1031973.html