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<H3>If, If..Else, If..ElseIf..Else</H3>
Unlike the control structures introduced above, the next three are not
concerned with the <CODE>Time</CODE> variable, but allow the user to specify
conditional execution by providing Boolean expressions. They do not require
much explanation really so all that is included here is the syntax:
<P><PRE>
If <expr>:
<body>
...
</PRE>
<P><PRE>
If <expr>
<body1>
...
Else
<body2>
...
</PRE>
<P><PRE>
If <expr1>
<body1>
...
ElseIf <expr2>
<body2>
...
ElseIf <expr3>
<body3>
...
.
.
Else
<default_body>
...
</PRE>
<P>Note that the block terminating symbol <CODE>...</CODE> must appear after
the end of every <CODE><body></CODE> section. Also note that conditional
expressions do not need to be surrounded by brackets as they do in C
and C++.
<P>
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<tr><td colspan="3" class="addr"><!-- bottom panel --><ADDRESS><FONT SIZE=-1>©1999,2000 Mark Pearson
<A HREF="mailto:m.pearson@ukonline.co.uk">m.pearson@ukonline.co.uk</A> April 30, 2000</ADDRESS><BR></td></tr><!-- end bottom panel --></table></BODY></HTML>
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