和 有何不同?
在下面的代码中,我不知道这些字符在功能上有何不同:\r \t \n。 这是一些示例代码: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <head> <title>Sorting words in a block of text by length</title> <link rel="stylesheet" type="text/css" href="common.css" /> </head> <body> <h1>Sorting words in a block of text by length</h1> <?php $myText = <<<END_TEXT But think not that this famous town has only harpooneers, cannibals, and bumpkins to show her visitors. Not at all. Still New Bedford is a queer place....