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问题描述:这是关于非线性混合离散变量优化算法程序其中一段复合型重构子函数,其中想去掉open建立的文件,换做其他形式,只要不影响运算就好[Fortran] 纯文本查看 复制代码 002 | integer cycle , en , p , eq , cst , fun , sch , qun |
006 | real x 0 ( 20 ) , ix 0 ( 20 ) , xl ( 20 ) , ixl ( 20 ) , xu ( 20 ) , ixu ( 20 ) , xb ( 20 ) , |
007 | 1 ixb ( 20 ) , xt ( 20 ) , ixt ( 20 ) , dx ( 20 ) , idx ( 20 ) , g ( 500 ) , iv ( 20 , 41 ) , y ( 41 ) , |
009 | common / c 0 / i 1 , i 2 , i 3 , i 4 , i 5 , i 6 / c 1 / n , m , en , p , eq , nv / c 2 / mi , cycle , cst , |
010 | 1 fun , sch , qun / c 3 / g / c 4 / x 0 , ix 0 / c 5 / xb , ixb / c 6 / xt , ixt / c 7 / xl , ixl , xu , ixu |
011 | 2 / c 8 / dx , idx / c 9 / iv , y / c 11 / n 1 / c 12 / f 1 , f 2 , pf 0 , pf 1 / c 10 / xv |
012 | common / csub / sub / ci 7 / i 7 / cff / ff ( 11 , 2 ) , kk , knt / c 15 / fo ( 11 ) , df ( 11 , 2 ) , |
013 | 1 dfdx ( 11 , 4 ) , cf ( 11 , 4 ) |
015 | WRITE ( * , '(1x,A)' ) 'Verticies Storage File Name=****.*** NSCH=***' 第二个文件处 |
016 | READ ( * , '(28X,A8,6X,I3)' ) NAME , NSCH |
017 | 919 write ( * , '(1x,a,\)' ) 'Input Verticies?(y/n)' |
019 | IF ( IYN .EQ. 'y' .or. IYN .EQ. 'Y' ) then |
020 | goto 913 顺便问下 , 这里直接转到 913 标号处 , 那下面 do 300 i = 1 , n 是不是就没有操作 ?????? |
021 | elseif ( iyn .ne. 'n' .and. iyn .ne. 'N' ) then |
030 | if ( i .eq. k ) go to 306 |
044 | 913 OPEN ( 2 , FILE = NAME , ACCESS = 'DIRECT' , FORM = 'BINARY' , RECL = 160 ) |
046 | READ ( 2 , REC = I ) ( IV ( J , I ) , J = 1 , N ) |
049 | read ( 2 , rec = nv 1 ) sch , fun , cst , cycle |
056 | write ( * , '(1x,2hx0,6f13.6)' ) ( x 0 ( i ) , i = 1 , n ) |
057 | write ( * , '(1x,5hf(x0),3x,f13.6)' ) pf 0 |
058 | write ( * , ' ( 1 x , 4 hsch = , i 4 , 3 x , 4 hfun = , i 5 , 3 x , 4 hcst = , i 5 , 3 x , 6 hcycle = , i 2 ) |
059 | 1 ' ) sch , fun , cst , cycle |
067 | if ( i 6 .ne. 1 ) go to 350 |
068 | write ( * , 1000 ) ( y ( i ) , i = 1 , nV ) |
069 | 1000 format ( 1 x , 2 hf = , / , 5 f 15.7 ) |
074 | write ( * , 1010 ) i , ( xt ( ii ) , ii = 1 , n ) |
075 | 1010 format ( 1 x , 2 hx = , i 5 , / , ( 5 f 15.7 ) ) |
087 | if ( w .le. idx ( i ) ) ir = ir +1 |
089 | if ( ir .ge. en ) go to 470 |
090 | if ( i 2 .ne. 1 ) go to 360 |
093 | if ( iw .le. qun ) go to 360 |
095 | if ( f 1 .ge. y ( 1 ) ) go to 360 |
097 | write ( * , 1020 ) qun , f 1 , ( xb ( i ) , i = 1 , n ) |
098 | 1020 format ( 10 x , 7 hsuccess , / , 10 x , 4 hqun = , i 5 , / , 10 x , 2 hf = , f 15.7 , / , |
099 | 1 10 x , 2 hx = , / , ( 5 f 15.7 ) ) |
107 | if ( isch * 50 .ne. sch ) go to 351 |
113 | if ( iv ( i , j ) .gt. iv ( i , 1 ) ) ngt = ngt +1 |
114 | if ( iv ( i , j ) .lt. iv ( i , 1 ) ) nlt = nlt +1 |
116 | if ( ngt .gt. 1 .and. nlt .gt. 1 ) ngl = ngl +1 |
118 | if ( ngl .gt. 1 ) go to 351 |
122 | if ( f 1 .gE. y ( n 1 ) ) go to 351 |
132 | IF ( MSCH * NSCH .EQ. SCH ) THEN |
133 | OPEN ( 2 , FILE = NAME , STATUS = 'NEW' , ACCESS = 'DIRECT' , FORM = 'BINARY' , |
136 | WRITE ( 2 , REC = I ) ( IV ( J , I ) , J = 1 , N ) |
139 | write ( 2 , rec = nv 1 ) sch , fun , cst , cycle |
由于,优化时,file2总是提示cannt overwrite file2,这个提示说事file2已经存在,但事实上其并没有建立过,我认为是recl=??的原因, 但又不知道怎么确定其长度.所以想在子函数功能相同的情况下,把这个文件用别的形式代替下删除掉,应该怎么改写,谢谢各位指导了
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