生成 0 到 9 之间的随机整数

将随机浮点数转换为 int。

输入：

my $range = 10;

# create random integer as low as 0 and as high as 9
my $random = int(rand($range));   # max value is up to but not equal to $range

print $random . "\n";

输出：

一个随机整数，如……

0

另见 rand 的 perldoc 。