Skipping within a For Loop

[Dimster]

Logically the answer to my question here is NO but embarrassment from asking stupid coding questions is my Forte.

When you have a loop control range, can you skip a specific step within the range? So for example the For Loop is 

For x = 50 to -50
   if x = 0 then next
Next

or if there may be a couple within the controlled range is there a way to

For x = 50 to -50
     if x = 10 or x = 0 or x = -10 then Next
Next

Thanks