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<!DOCTYPE html> <html> <body> <p> This paragraph contains a lot of lines in the source code, but the browser ignores it. </p> <p> This paragraph contains a lot of spaces in the source code, but the browser ignores it. </p> <p> 段落的行数取决于浏览器窗口的大小。如果您调整浏览器窗口的大小，该段落中的行数将会改变。 </p> </body> </html>