함수 complement

complement

1 PHP[ | ]

PHP

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$arr1 = array('A', 'B', 'C', 'D');
$arr2 = array('C', 'D', 'E', 'F');
print_r( array_values(array_diff($arr1, $arr2)) );
// Array ( [0] => A [1] => B )

2 Python[ | ]

Python

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set1 = {'A', 'B', 'C', 'D'};
set2 = {'C', 'D', 'E', 'F'};
print( set1 - set2 )
# {'A', 'B'}
print( set2 - set1 )
# {'F', 'E'}

3 같이 보기[ | ]