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for variable = start_expression to stop_expression [ step step_expression ]
(tab)statement(s)
next variable

The FOR and NEXT commands are used in conjunction to execute a command or group of commands a specified number of times. When the FOR command is first encountered, the variable is set to start_expression.
After each NEXT command, variable is incremented by 1 (the default), or by step_expression if the optional STEP is used, until the variable is greater than stop_expression for positive step values, or less than stop_expression for negative step values.

for i = 1 to 10
	print i
next i

print "after the for " + i

displays

1
2
3
4
5
6
7
8
9
10
after the for 11