为什么版本不可打印?

Why version is not printable?

我有这个衬垫:

perl -Mversion -e 'our $VERSION = v1.02; print $VERSION'

输出为(不可见,有两个字符:1、2):

为什么模块版本不可打印?我希望看到 v1.02

我找到了这个DOC

print v9786;              # prints SMILEY, "\x{263a}"
print v102.111.111;       # prints "foo"
print 102.111.111;        # same

回答我的问题:
尽管 v1.02v-string 内部不是字符串。当我们想要打印它时,我们应该做额外的步骤。例如,按照上面的建议使用模块 version

UPD
我找到了下一个解决方案 (DOC):

printf "%vd", $VERSION;  # prints "1.2"

UPD

this应该读作:

There are two ways to enter v-strings: a bare number with two or more decimal points, or a bare number with one or more decimal points and a leading 'v' character (also bare). For example:

$vs1 = 1.2.3; # encoded as 
$vs2 = v1.2;  # encoded as