rebol []的相关函数

append添加[]中的一个项例如：

gui-layout1: [button field text-list]
some-names: ["John" "Bill" "Tom" "Mike"]
append some-names "Lee"
print some-names

append gui-layout1 [text "This text was appended to the GUI block."]
view layout gui-layout1
foreach选择项例如：

foreach item some-names [alert item]
remove-each删除项例如：

remove-each name some-names [find name "i"]
copy用于创建空[]例如：

empty-block: copy []

probe选择第几个[例如：

big-block: [    [may june july]     [         [1 2 3]         [            [yes no]            [monday tuesday friday]        ]    ]]probe first big-blockprobe second big-blockprobe first second big-blockprobe second second big-blockprobe first second second big-blockprobe second second second big-block

如果第一[的第二个[没有，将显示第二个[的第一个