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whf199022新蟲 (初入文壇)
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[求助]
菜鳥求助fortran數(shù)組聲明及子程序的一些問題啊
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用fortran編程時出現(xiàn)這樣的問題,求助啊 CALL INITI(NX,NY,DX,DY,X0,XE,X,Y,P,POLD) SUBROUTINE INITI(NX,NY,DX,DY,X0,XE,X,Y,P,POLD) !子程序INITI給定節(jié)點初始坐標(biāo)和初始(赫茲)壓力 DIMENSION X(0:NX),Y(0:NY),P(0:NX,0:NY),POLD(0:NX,0:NY) DX=(XE-X0)/NX Y0=-0.5*(XE-X0) DY=(XE-X0)/NY DO I=0,NX X(I)=X0+(I-1)*DX END DO DO J=0,NY Y(J)=Y0+(J-1)*DY END DO DO I=0,NX D=1.-X(I)*X(I) DO J=0,NY/2 C=D-Y(J)*Y(J) IF(C.LE.0.0)P(I,J)=0.0 IF(C.GT.0.0)P(I,J)=SQRT(C) END DO END DO DO I=0,NX DO J=(NY/2+1),NY JJ=NY-J P(I,J)=P(I,JJ) END DO END DO DO I=0,NX DO J=0,NY POLD(I,J)=P(I,J) ENDDO ENDDO RETURN END 這個是出錯程序 下面是出錯的問題 E:\DIANJIECHU\DIANJIECHU.F90(75) : Error: A specification statement cannot appear in the executable section. SUBROUTINE INITI(NX,NY,DX,DY,X0,XE,X,Y,P,POLD) !子程序INITI給定節(jié)點初始坐標(biāo)和初始(赫茲)壓力 ^ E:\DIANJIECHU\DIANJIECHU.F90(76) : Error: A specification statement cannot appear in the executable section. DIMENSION X(0:NX),Y(0:NY),P(0:NX,0:NY),POLD(0:NX,0:NY) ^ E:\DIANJIECHU\DIANJIECHU.F90(81) : Error: This name has not been declared as an array. [X] X(I)=X0+(I-1)*DX ^ E:\DIANJIECHU\DIANJIECHU.F90(84) : Error: This name has not been declared as an array. [Y] Y(J)=Y0+(J-1)*DY ^ E:\DIANJIECHU\DIANJIECHU.F90(90) : Error: This name has not been declared as an array. [P] IF(C.LE.0.0)P(I,J)=0.0 ------------^ E:\DIANJIECHU\DIANJIECHU.F90(91) : Error: This name has not been declared as an array. [P] IF(C.GT.0.0)P(I,J)=SQRT(C) ------------^ E:\DIANJIECHU\DIANJIECHU.F90(97) : Error: This name has not been declared as an array. [P] P(I,J)=P(I,JJ) ^ E:\DIANJIECHU\DIANJIECHU.F90(102) : Error: This name has not been declared as an array. [POLD] POLD(I,J)=P(I,J) ^ E:\DIANJIECHU\DIANJIECHU.F90(105) : Error: A RETURN statement is invalid in the main program. RETURN ^ |

新蟲 (初入文壇)

新蟲 (初入文壇)

新蟲 (初入文壇)

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