PHP代码:--------------------------------------------------------------------------------

=strlen($string))

{

return $string;

}

$s="";

for($i=0;$i127)

{

$s.=$string{$i}.$string{++$i};

continue;

}else{

$s.=$string{$i};

continue;

}

}

return $s;

}// End Function cnSubStr($string,$sublen)

/////////// Use like this :

echo "

__________________________

";

$string="242432反对感是456犯得上广泛大使馆地方7890";

$sublen=strlen($string);

$len=20;

echo $string."

";

echo "总长为：".($sublen+1)."

";

echo "截取数：".$len."

";

for($i=1;$i$len){

echo $i." → ".cnSubStr($string,$i)."…

";

continue;

}

echo $i." → ".cnSubStr($string,$i)."

";

}

?>