PERLNUMBER 7
目录
PERLNUMBER
NAMESYNOPSIS æ»è§
DESCRIPTION æè¿°
Storing numbers æ°å¼åå¨
Numeric operators and numeric conversions æ°å¼è¿ç®ç¬¦åæ°å¼è½¬æ¢
Flavors of Perl numeric operations æ°å¼æä½çç¹è²
AUTHOR ä½è
SEE ALSO åè§
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NAME
perlnumber - Perl ä¸æ°åçè¯ä¹ä»¥åç®æ¯æä½
SYNOPSIS æ»è§
$n = 1234; #
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$n = 0b1110011; #
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$n = 01234; #
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$n = 0x1234; #
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$n = 12.34e-56; #
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$n = "-12.34e56"; #
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$n = "1234"; #
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DESCRIPTION æè¿°
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Storing numbers æ°å¼åå¨
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æ»èè¨ä¹ï¼Perlä¸çæ°æ¯æéä½æ°çåè¿å¶æ°æè说æ¯è¶³å¤ççäºè¿å¶æ°ã
Numeric operators and numeric conversions æ°å¼è¿ç®ç¬¦åæ°å¼è½¬æ¢
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Flavors of Perl numeric operations æ°å¼æä½çç¹è²
Perl ä¸- 带ææ°å¼åæ°çæä½å°æç§åç§æ¹æ³å¤çåæ°ï¼å®ä»¬å¯è½ä¼å°åæ°å¼ºå¶è½¬æ¢ä¸ºæ´åï¼æµ®ç¹åææ¯å- 符串åä¸- çä¸ç§ï¼æèæç§æä½æ°çæ¼å¼æ¥å¤çåæ°ãå¨æä¸ä¸ªæ°çç±»å强å¶è½¬æ¢æå¦ä¸ç§ç¹å®çç±»åçè¿ç¨ä¸- ï¼åæ¥åå¨çå¼ä¸ä¼æ¹åã
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Arithmetic operators
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å®ä¹äº "use integer" æ¶çç®æ¯è¿ç®
å¨ "use integer;" çä½ç¨èå´åï¼åä¹ä¸é¢ååºçæææä½ç¬¦é½å°å®ä»¬çæä½æ°è½¬æ¢ä¸ºæ´æ°ï¼è¿åæ´æ°çç»æï¼ä¾å¤æåµæ¯ "abs", "++" å "--"ï¼å¨è¿ç§æåµä¸ä¸æ¹åè¡ä¸ºã
Other mathematical operators å¶ä»æ°å¦æä½ç¬¦
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Bitwise operators ä½æä½ç¬¦
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AUTHOR ä½è
Ilya Zakharevich "ilya@math.ohio-state.edu"
ç± Gurusamy Sarathy <gsar@ActiveState.com> ç¼è¾
ç± Nicholas Clark <nick@ccl4.org> æ´æ°ä¸º 5.8.0 ç
SEE ALSO åè§
overload, perlop
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man
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