单词 |
block variable |
释义 |
1 ?集区变量 ... 存储区变量 area variable 集区变量 block variable 获取当前的激活文本区变量名 getfocus ... 2 ?又称为区隔变数 X Y 干扰变数 介于X 与 Y 中间,具有调节的作用 也可视之为第二个 X 又称为区隔变数 (block variable) 3 ?区块变数 谈到很复杂,在这边先谈谈「全域变数(Global variable )、「区域变数(Local variable )与「 区块变数 ( Block variable )。 全域变数是指直接宣告在(主)函式之外的变数,这个变数在整个程式之中都「看得它的存在,而可以呼叫使用,例如:
- 1
If you enter the block more than once during the procedure, each block variable retains its previous value. 如果您在过程的生存期内多次进入该块,则每个块变量会保留它的前一个值。 - 2
puts a In Ruby 1.8, this code prints "42", because the block variable a is actually the same a of the containing scope. puts a 在Ruby 1.8中,这段代码会打印出“42”, 因为块变量a和所包含域中的a就是一个变量。 - 3
It builds a tabulated list of announcements for use in the announcement block content variable. 它构建一个表格式的公告列表,这将用在公告区块内容变量中。
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随便看 |
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