我对 Perl 有点陌生，但这是我想要做的:
I am a bit new to Perl, but here is what I want to do:
my @array2d; while(<FILE>){ push(@array2d[$i], $_); }它无法编译，因为 @array2d[$i] 不是数组而是标量值.
It doesn't compile since @array2d[$i] is not an array but a scalar value.
我应该如何将@array2d 声明为数组的数组?
How should I declare @array2d as an array of array?
当然，我不知道我有多少行.
Of course, I have no idea of how many rows I have.
推荐答案要创建数组数组，或者更准确地说是数组引用数组，请尝试以下操作:
To make an array of arrays, or more accurately an array of arrayrefs, try something like this:
my @array = (); foreach my $i ( 0 .. 10 ) { foreach my $j ( 0 .. 10 ) { push @{ $array[$i] }, $j; } }它为您将值推送到取消引用的 arrayref 上.您应该能够访问这样的条目:
It pushes the value onto a dereferenced arrayref for you. You should be able to access an entry like this:
print $array[3][2];