怎么把几个子程序里面的goto语句改成循环和判断语句呀
IF(KREST.EQ.1) GO TO 1001READ(1,69) (IHEDIN(IH),IH=1,40)
READ(1,*) KPI,KSI
69FORMAT(40A2)
98FORMAT(2I5)
61FORMAT(20A2)
66FORMAT(10F8.2)
IF(KPI.NE.0) GO TO 5601
READ(1,61)(IHEDIN(IH) ,IH=1,20)
READ(1,*)PI
READ(1,61) (IHEDIN(IH),IH=1,20)
READ(1,*)PGOC
READ(1,61)(IHEDIN(IH),IH=1,20)
READ(1,*)WOC
READ(1,61) (IHEDIN(IH),IH=1,20)
READ(1,*)GOC
PI=SIP*PI
DO 200 K=1,KK
DO 200 J=1,JJ
DO 200 I=1,II
IF(EL(I,J,K).LT.GOC) GO TO 175
IF(EL(I,J,K).GT.WOC)GO TO 150
BPT=PBOT(I,J,K)
CALL INTPVT(BPT,BSLOPE,POT,BOT,MPOT,PI,BBO)
CALL INTPVT(BPT,RSLOPE,POT,RSOT,MPOT,PI,RSO)
RHOO=(RHOSCO+RSO*RHOSCG)/BBO
PN(I,J,K)=PI+RHOO*(EL(I,J,K)-WOC)*.09671
GO TO 200
150CALL INTERP(PWT,BWT,MPWT,PI,BBW)
CALL INTERP(PWT,RSWT,MPWT,PI,RSW)
RHOW=(RHOSCW+RSW*RHOSCG)/BBW
PN(I,J,K)=PI+RHOW*(EL(I,J,K)-WOC)*.09671
GO TO 200
175CALL INTERP(PGT,BGT,MPGT,PGOC,BBG)
RHOG=RHOSCG/BBG
PN(I,J,K)=PGOC+RHOG*(EL(I,J,K)-GOC)*.09671
200CONTINUE
GO TO 4010
5601IF(KPI.EQ.1) THEN
READ(1,61)(IHEDIN(IH) ,IH=1,20)
DO 3010 K=1,KK
READ(1,61)(IHEDIN(IH) ,IH=1,20)
DO 3010 J=1,JJ
3010READ(1,*)(PN(I,J,K),I=1,II)
DO 3005 K=1,KK
DO 3005 J=1,JJ
DO 3005 I=1,II
PN(I,J,K)=PN(I,J,K)*SIP
3005CONTINUE
ELSE IF(KPI.EQ.-1) THEN
READ(1,61)(IHEDIN(IH) ,IH=1,20)
READ(1,*)(PPX(K),K=1,KK)
DO 3008 K=1,KK
DO 3008 J=1,JJ
DO 3008 I=1,II
PN(I,J,K)=PPX(K)*SIP
3008 CONTINUE
ENDIF
4010CONTINUE
C****INITIALIZE N+1,II
DO 3012 I=1,II
DO 3012 J=1,JJ
DO 3012 K=1,KK
3012P(I,J,K)=PN(I,J,K)
IF(KSI.NE.0)GO TO 5600
READ(1,69)(IHEDIN(IH),IH=1,40)
READ(1,*)SOI,SWI,SGI
DO 30 K=1,KK
DO 30 J=1,JJ
DO 30 I=1,II
SON(I,J,K)=SOI
SWN(I,J,K)=SWI
SGI=1.0-SOI-SWI
SGN(I,J,K)=SGI
SO(I,J,K)=SOI
SW(I,J,K)=SWI
SG(I,J,K)=SGI
IF(SG(I,J,K).LT.0.0) SG(I,J,K)=0.0
30 CONTINUE
READ(1,69)(IHEDIN(IH),IH=1,40)
WRITE(6,1111)(IHEDIN(IH),IH=1,40)
1111FORMAT(20X,38('*')/20X,40A2/20X,38('*')/)
3015 RETURN
5600DO 3011 K=1,KK
READ(1,69)(IHEDIN(IH),IH=1,40)
DO 3006 J=1,JJ
3006 READ(1,*)(SO(I,J,K),I=1,II)
3011 CONTINUE
DO 3020 K=1,KK
READ(1,69)(IHEDIN(IH),IH=1,40)
DO 3007 J=1,JJ
3007 READ(1,*)(SW(I,J,K),I=1,II)
3020 CONTINUE
DO 3030 K=1,KK
DO 3030 J=1,JJ
DO 3030 I=1,II
SG(I,J,K)=1.0-SO(I,J,K)-SW(I,J,K)
IF(SG(I,J,K).LT.0.0) SG(I,J,K)=0.0
SON(I,J,K)=SO(I,J,K)
SWN(I,J,K)=SW(I,J,K)
SGN(I,J,K)=SG(I,J,K)
3030CONTINUE
READ (1,69)(IHEDIN(IH),IH=1,40)
WRITE(6,1111)(IHEDIN(IH),IH=1,40)
GO TO 9009
1001CONTINUE
C
C
C ********* I-- READ OF INITIAL WELL PRODUCTION DATA *********
DO 2202 K=1,KK
2202READ(2,1114)KKK, OOIP(K),OWIP(K),ODGIP(K),OFGIP(K)
READ (2,1115) TOOIP
1114FORMAT(I5,4F10.4)
1115FORMAT(4F10.4)
C
READ(2,1113)NVQN1
DO 1101 I=1,NVQN1
DO 1101 K=1,KK
READ(2,1116)III,KKK,CUMO(I,K),CUMW(I,K),CUMG(I,K)
1101CONTINUE
1116FORMAT(2I5,3F10.0)
1113FORMAT(I5)
C
C ********* 2-- READ OF CUMMULATIVE PRODUCTION DATA **********
C
READ(2,4441)(IHEDIN(IH),IH=1,18),ETIR
READ(2,4442)(IHEDIN(IH),IH=1,18),NRESTT
READ(2,4441)(IHEDIN(IH),IH=1,18),PAVG0
READ(2,4443)(IHEDIN(IH),IH=1,18),COP
READ(2,4443)(IHEDIN(IH),IH=1,18),CGP
READ(2,4443)(IHEDIN(IH),IH=1,18),CWP
READ(2,4443)(IHEDIN(IH),IH=1,18),CGI
READ(2,4443)(IHEDIN(IH),IH=1,18),CWI
4441FORMAT(18A2,F10.0)
4442FORMAT(18A2,I5)
4443FORMAT(18A2,E10.4)
WRITE(6,4444)ETIR,NRESTT,PAVG0,COP/1000.0,CGP/1000.0,
& CWP/1000.0,CGI/1000.0,CWI/1000.0
4444FORMAT(35X,'ELAPSED TIME(DAYS) =',F10.2,' DAYS'
&,/35X,'TIMESTEP NUMBER =',I5,/
& 35X,'CURRENT AVERAGE RESERVOIR PRESSURE =',F10.2,'MPa',/
& 35X,'CUM. OIL PRODUCTION =',E10.4,'*1000M^3',
&/35X,'CUM. GAS PRODUCTION =',E10.4,'*1000M^3',
&/35X,'CUM. WATER PRODUCTION =',E10.4,'*1000M^3',
&/35X,'CUM GAS INJECTION =',E10.4,'*1000M^3',
&/35X,'CUM WATER INJECTION =',E10.4,'*1000M^3')
C
C ********* 3-- PRESSURE AND SATURATION DATA READING *********
C
PAVG0=9.869*PAVG0
DO 202 K=1,KK
READ(2,444)(IHEDIN(IH),IH=1,4),KLAY
DO 202 J=1,JJ
READ(2,333)(P(I,J,K),I=1,II)
202CONTINUE
333FORMAT(10F8.4)
444FORMAT(4A2,I2)
C
DO 303 K=1,KK
READ(2,444)(IHEDIN(IH),IH=1,4),KLAY
DO 303 J=1,JJ
READ(2,333)(SO(I,J,K),I=1,II)
303CONTINUE
C
DO 404 K=1,KK
READ(2,444)(IHEDIN(IH),IH=1,4),KLAY
DO 404 J=1,JJ
READ(2,333)(SW(I,J,K),I=1,II)
404CONTINUE
C
DO 505 K=1,KK
READ(2,444)(IHEDIN(IH),IH=1,4),KLAY
DO 505 J=1,JJ
READ(2,333)(SG(I,J,K),I=1,II)
505CONTINUE
C
DO 606 K=1,KK
READ(2,444)(IHEDIN(IH),IH=1,4),KLAY
DO 606 J=1,JJ
READ(2,333)(PBOT(I,J,K),I=1,II)
606CONTINUE
C
DO 908 K=1,KK
DO 908 J=1,JJ
DO 908 I=1,II
P(I,J,K)=9.869*P(I,J,K)
PN(I,J,K)=P(I,J,K)
PBOT(I,J,K)=9.869*PBOT(I,J,K)
SON(I,J,K)=SO(I,J,K)
SWN(I,J,K)=SW(I,J,K)
SGN(I,J,K)=SG(I,J,K)
908 CONTINUE
9009CONTINUE
C
RETURN
END
上面DO循环里的GO TO 200相当于cycle，其他的需要做if判断
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