Goto/exit/cycle in FORTRAN

1, Goto
Goto has been circulated in FORTRAN77, which provides a random jump to the position of the code of the assigned row. If it is in a do loop
Do 30 I = 1, n
If (......) Goto 30
30 continue
The preceding statement indicates that if the condition in IF is met, the next loop is performed.

2, pause
The pause function can be the same as its literal meaning. When the program is executed to pause, the execution will be paused until the user presses enter.

3. Continue
The continue command has no actual purpose. Its function is to continue to execute the program

4, stop
It can be used to end program execution.

5, cycle
The cycle Command performs the next loop by directly jumping back to the beginning of the loop of all program code after the cycle command in the program module that has skipped the loop.
For example
Do floor = 1, dest
If (floor = 4) cycle
Write (*, *) Floor
End do

The execution result is as follows:
1
2
3
5
6
......

6. Exit
The exit function can directly jump out of an ongoing loop, whether it is a do loop or a do while loop.