117笔记问答在CentOS下使用Fortran进行字符串操作，你可以使用Fortran内置的字符串处理函数
- 字符串连接：
program concat_strings implicit none character(len=10) :: str1, str2, result str1 = 'Hello' str2 = 'World' result = trim(str1) // ' ' // trim(str2) print *, result end program concat_strings
- 字符串长度：
program string_length implicit none character(len=10) :: str integer :: length str = 'Hello, World!' length = len_trim(str) print *, 'Length of the string:', length end program string_length
- 字符串查找：
program find_substring implicit none character(len=20) :: str, sub_str integer :: position str = 'Hello, World!' sub_str = 'World' position = index(str, sub_str) if (position /= 0) then print *, 'Substring found at position:', position else print *, 'Substring not found' end if end program find_substring
- 字符串替换：
program replace_substring implicit none character(len=20) :: str, old_sub_str, new_sub_str integer :: position str = 'Hello, World!' old_sub_str = 'World' new_sub_str = 'Fortran' position = index(str, old_sub_str) if (position /= 0) then str = str(1:position-1) // new_sub_str // str(position+len(old_sub_str):) end if print *, 'Modified string:', str end program replace_substring
这些示例展示了如何在CentOS下使用Fortran进行基本的字符串操作。你可以根据自己的需求修改这些示例，并使用更多的内置函数来处理字符串。