I am assuming you are asking how to continue a line of code onto the next line. In Fortran, you can do this by ending the line with a continuation character, which is typically an ampersand (&). For example, if you have a long statement that you want to continue onto the next line, you would could do something like this:
long_statement = 1 + 2 + 3 + 4 + 5 &
You can also continue a statement onto the next line without using a continuation character by using an arrow (=>). For example:
long_statement => 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10
Both of these methods would produce the same result.