Use a character string variable as an "internal file", write the file : name you want to this string (like sprintf in C), and use the string. : character(len=12)::fname : integer::i : do i=0,9999,1 : write(unit=fname,fmt="('file',i4.4,'.dat')")i ! like sprintf() in...
program main real t0,t1 integer i block integer,allocatable::a(:) call CPU_TIME(t0) a=[1] do i=2,100000 a=[a,i] end do ! print*, a(100000),size(a) call CPU_TIME(t1) print*, "TOTAL_TIME=", t1-t0 end block block integer,allocatable::a(:) call CPU_TIME(t0) allocate(a...
demo% cat hasc.f call z(4habcd, ’abcdefg’) end subroutine z(i, s) integer i character *(*) s print *, "string length = ", len(s) return end demo% f95 -o has0 hasc.f demo% has0 string length = 4 <-- 应为 7 demo% f95 -o has1 -xhasc=no hasc.f demo% has1 st...
代码语言:txt 复制 subroutine fortran_to_c(strings, num_strings, string_length) implicit none character(len=*), intent(in) :: strings(:) integer, intent(in) :: num_strings, string_length integer :: i do i = 1, num_strings call c_function(strings(i), string_length) end do end ...
...在Python中将字符串转换为整数的错误方法 (The Wrong Way to Convert a String to an Integer in Python) Programmers coming...在Python中将字符串转换为整数的正确方法 (The Correct Way to Convert a String to an Integer in Python ) Here's a simple ...
读取命令行的第i个参数,并将其存储到charstring中,其中命令本身是第0个参数 1Example:2! procedure has2arguments, oneisinput file, otherisoutput file3PROGRAM MAIN4IMPLICIT NONE5INTEGER argc6character*60FILEIN,FILEOUT78IF(nargin==0) THEN9FILEIN ='FILE.IN'!default10ELSEIF(nargin==1) THEN11CALL...
Fortran 77中给变量赋初值常用DATA命令,可同时给多个变量赋初值data a,b,string /1, 2.0, 'fortran'/ 与C不同的是,Fortran中变量不声明也能使用,即有默认类型(跟implicit命令有关)。按照默认的定,以i,j,k,l,m,n开头的变量被定义为integer,其余为real。
’Input string ’, string, ’ becomes: ’, value print *, ’Value of 1e300 * 1e10 is:’, 1e300 * 1e10 i = ieee_flags(’clear’, ’exception’, ’all’, out) end integer function exception_handler(sig, code, sigcontext) integer sig, code, sigcontext(5) print *, ’*** IEEE...
INTEGER::ierror OPEN(UNIT=8,FILE='example.dat',STATUS='OLD',ACTION='READ',IOSTAT=ierror,IOMSG=err_string) 2. 打开文件进行输出 INTEGER::ierror,unit CHARACTER::err_string,filename unit=25 filename='OUTCAR' OPEN(UNIT=unit,FILE=filename,STATUS="NEW",ACTION='WRITE',IOSTAT=ierror,IOMSG=...
double precision :: a(3) = [215.5745d0,6.569674d0,16.42418d0] integer :: digs(3) character(20) :: form digs = log10(a) + 1 do i = 1, 3 write(form,'(a,i0,a)') "(f8.", max(min(7-digs(i),7),0), ")" print form, a(i) end do end...