Campbell CR9000, Инструкция по эксплуатации

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Section 9. Program Control Instructions
9-13
The thenpart and the elsepart fields both have this syntax:
{statements | [GoTo] linenumber | GoTo linelabel }
The thenpart and elsepart syntax has these parts:
Part Description
statements One or more CRBasic statements, separated by colons.
Note You can have multiple statements with a condition , but they
must be on the same line and separated by colons, as in the
following statement:
If A > 10 Then A = A + 1 : B = B + A : C = C + B
Syntax 2 Description
The block form of If...Then...Else provides more structure and flexibility than
the single-line form and is usually easier to read, maintain, and debug. Syntax
2 has these parts:
Part Description
If Keyword that begins the block If...Then decision
control structure.
condition1 Same as condition used in the single-line form shown
above.
Then Keyword used to identify the actions to be taken if a
condition is satisfied.
statementblock-1 One or more CRBasic statements executed if condition1
is true.
ElseIf Keyword indicating that alternative conditions must be
evaluated if
condition1 is not satisfied.
condition2 Same as condition used in the single-line form shown
above.
statementblock-2 One or more CRBasic statements executed if condition2
is true.
Else Keyword used to identify the actions taken if none of
the previous conditions are satisfied.
statementblock-n One or more CRBasic statements executed if condition1
and condition2 are both false.
End If Keyword that ends the block form of the If...Then .
In executing a block If, CRBasic tests condition1 , the first numeric expression.
If the expression is true, the statements following Then are executed.
If the first expression is false, CRBasic begins evaluating each ElseIf condition
in turn. When CRBasic finds a true condition, the statements immediately
following the associated
Then are executed. If none of the ElseIf conditions is
true, the statements following the Else are executed. After executing the
statements following Then or Else , the program continues with the statement
following End If .