W3School TIY Editor
W3School 在线教程
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暗黑模式
<!DOCTYPE html> <html> <body> <?php echo(round(0.60) . "<br>"); echo(round(0.50) . "<br>"); echo(round(0.49) . "<br>"); echo(round(-4.40) . "<br>"); echo(round(-4.60)); ?> </body> </html>