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鸽子
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853天前#----------------------------- |
# %HASH is the hash to sort |
@keys = sort { criterion() } (keys %hash); |
foreach $key (@keys) { |
$value = $hash{$key}; |
# do something with $key, $value |
} |
#----------------------------- |
foreach $food (sort keys %food_color) { |
print "$food is $food_color{$food}.\n"; |
} |
#----------------------------- |
foreach $food (sort { $food_color{$a} cmp $food_color{$b} } |
keys %food_color) |
{ |
print "$food is $food_color{$food}.\n"; |
} |
#----------------------------- |
@foods = sort { length($food_color{$a}) <=> length($food_color{$b}) } |
keys %food_color; |
foreach $food (@foods) { |
print "$food is $food_color{$food}.\n"; |
} |
#----------------------------- |
