无为清净楼资源网 Design By www.qnjia.com
本文实例讲述了php实现将任意进制数转换成10进制的方法。分享给大家供大家参考。具体如下:
php将任意进制的数转换成10进制,例如8进制转换成10进制,16进制转换成10进制
<"<b>Convert the base $base number $number to a base 10 number:</b><blockquote>"; print "Convert the integer component ($integer) of the number:<blockquote>"; // Compute the value of the integer component // Loop through the integer digit by digit // Reverse the number for easier handling $integer = strrev ($integer); $length = strlen ($integer); for ($pos = 0; $pos < $length; ++$pos) { /* PHP lets you treat strings and numbers like arrays Specify an offset and get the character at that position */ $digit = $integer[$pos]; // Handle character values for digits // (for bases greater than 10) if (eregi ('[a-z]', $digit)) { $digit_value = (ord (strtolower ($digit)) - ord ('a')) + 10; $digit = "$digit ($digit_value)"; } else { $digit_value = $digit; } // Multiply the current digit by the radix // raised to the power of the current position $result = $digit_value * pow ($base, $pos); print "Multiply the value of the digit at position $pos by the value of the radix ($base) raised to the power of the position ($pos):<br/>"; print "$digit * $base<sup>$pos</sup> = $result <br/><br/>"; $sums[] = $result; } print '</blockquote>'; if (isset ($decimal)) { print "Convert the decimal component (0.$decimal) of the number:<blockquote>"; // Pad the number with a leading 0 so that we can // start at position 1 $decimal = '0'.$decimal; $length = strlen ($decimal); for ($pos = 1; $pos < $length; ++$pos) { $digit = $decimal[$pos]; // Handle character values for digits // (for bases greater than 10) if (eregi ('[a-z]', $digit)) { $digit_value = (ord (strtolower ($digit)) - ord ('a')) + 10; $digit = "$digit ($digit_value)"; } else { $digit_value = $digit; } // Multiply the current digit by the radix // raised to the power of the current position $result = $digit_value * pow (1/$base, $pos); print "Multiply the value of the digit at position $pos by the value of the 1/radix ($base) raised to the power of the position ($pos):<br/>"; print "$digit * 1/$base<sup>$pos</sup> = $result<br/><br/>"; $sums[] = $result; } print '</blockquote>'; } $sums = implode (' + ', $sums); eval ("\$base_10_value = $sums;"); print "</blockquote>The value of the base $base number $number in base 10 is $base_10_value. <br/>"; print "This number is derived from the sum of the values of the previous operations ($sums). <br/> <br/>"; }
希望本文所述对大家的php程序设计有所帮助。
无为清净楼资源网 Design By www.qnjia.com
广告合作:本站广告合作请联系QQ:858582 申请时备注:广告合作(否则不回)
免责声明:本站文章均来自网站采集或用户投稿,网站不提供任何软件下载或自行开发的软件! 如有用户或公司发现本站内容信息存在侵权行为,请邮件告知! 858582#qq.com
免责声明:本站文章均来自网站采集或用户投稿,网站不提供任何软件下载或自行开发的软件! 如有用户或公司发现本站内容信息存在侵权行为,请邮件告知! 858582#qq.com
无为清净楼资源网 Design By www.qnjia.com
暂无评论...
更新日志
2024年09月23日
2024年09月23日
- 国风大师纯音系列《古筝仙子 常静演奏 十指弹一》1CD[FLAC][919MB]
- DasKapital-OneMustHaveChaosInsidetoGiveBirthtoaDancingStar(2024)[24-44.1]WAV
- 王菲.1999-《只爱陌生人》日本东芝版[低速原抓WAV+CUE]
- 张小英1987-金奖金曲第一集[新加坡版][WAV+CUE]
- 鹿晗.2015-重启【海蝶】【FLAC分轨】
- 张芸京.2012-小女孩【金牌大风】【WAV+CUE】
- 余天.2002-雄狮魅力金曲2CD(南方金点系列)【南方】【WAV+CUE】
- 银霞.1982-《结·SAYYESMYBOY》台湾复刻版[WAV+CUE]
- 梁汉文1993-火热动感[引进版][WAV+CUE]
- 梁汉文2008-EDMONDHITS48[香港]3CD[WAV+CUE]
- 国风大师纯音系列《童丽-[渭城曲]》1CD[WAV分轨][593.5MB]
- 国风大师纯音系列《许菱子《烧筝2》古筝曲集》1CD[WAV分轨][1.3GB]
- 王子异《1996 Part.2》[320K/MP3][18.29MB]
- 群星.1994-宝丽金最倾情3CD【宝丽金】【WAV+CUE】
- 乐俊亨.2024-同泪【CharioticMusic】【FLAC分轨】