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<html>
<head>
<title>IF Metacommand in Embperl</title>
</head>
<body>
[- $a = 1; $b = 0; $c = 5; $d = 'txt' -]
a1
[* if ($a) { *]
a <br>
[* } *]
a2
[* if ( $a) { *]
a <br>
[* } else { *]
not a<br>
[* } *]
a3
[* if ( $a<br>) { *]
a <br>
[* } else { <br>*]
not a<br>
[* } <br>*]
a4
[*<br>if ($a) { *]
a <br>
[* <br> } else { <br>*]
not a<br>
[* <br>} *]
a5
[* if ($a) {*]
a <br>
[* if ( $b == 0) {*]
b is null <br>
[* } else { *]
b is not null <br>
[* } *]
[* } else{*]
not a<br>
[* } *]
[* if ($a) {*]
a <br>
[* if ( $b == 0) {*]
b is null <br>
[* } else { *]
b is not null <br>
[* } *]
[* } else {*]
not a<br>
[* if ( $b == 0) {*]
b is null <br>
[* } else { *]
b is not null <br>
[* } *]
[* } *]
[* if (!$a) {*]
not a <br>
[* if ( $b == 0) {*]
b is null <br>
[* } else { *]
b is not null <br>
[* } *]
[* } else {*]
a<br>
[* if ( $b == 0) {*]
b is null <br>
[* } else { *]
b is not null <br>
[* } *]
[* } *]
[* if ($a) {*]
a <br>
[* if ( $b == 0) {*]
b is null <br>
[* } elsif ($c == 5) { *]
b is not null and c is 5 <br>
[* } elsif ($d eq 'txt') {*]
b is not null and c is not 5, but d is 'txt' <br>
[* } else { *]
b is not null and c is not 5 and d is not 'txt' <br>
[* } *]
[* } else {*]
not a<br>
[* } *]
[- $ttrue = 'true'; $tfalse = '' -]
[* if ( $ttrue) { *]
ttrue = true
[* } else { *]
ttrue = false
[* } *]
[* if ( $tfalse) { *]
tfalse = true
[* } else { *]
tfalse = false
[* } *]
</body>
</html>
|
