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本帖最后由 reb00t 于 2014-08-29 00:27 编辑
- awk -vRS=' ' 'NR==FNR{a[$1];next}!($0 in a){if(m>$0||m=="")m=$0}END{print m}' b a
- 64648
- head b a
- ==> b <==
- 64657 64650 64654 64660 64646 64647 64656 64651 64652 64659
- ==> a <==
- 64646 64647 64648 64649 64650 64651 64652 64653 64654 64655 64656 64657 64658 64659 64660
复制代码 参照2楼的思路写一个。- <?php
- $str1="64657 64650 64654 64660 64646 64647 64656 64651 64652 64659";
- $str2="64646 64647 64648 64649 64650 64651 64652 64653 64654 64655 64656 64657 64658 64659 64660";
- $arr1 = explode(" ",$str1);
- $arr2 = explode(" ",$str2);
- sort($arr1);
- sort($arr2);
- foreach ($arr2 as $v) {
- if( in_array($v, $arr1)){
- //echo "{$v}存在\n";
- }else {
- echo "{$v}\n";
- break;
- }
- }
- ?>
复制代码 |
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