Using a string is unwieldy, and it forces you to reserve a specific number of characters in the string for each value or to use a separator character to delimit each value.

使用字符串非常笨拙，而且必须为字符串中的每个值保留固定的字符数，或者使用分隔符来划分。

youdao

Having two methods seems a bit wasteful. It would be nice if we could eliminate the second joiner method and declare that the separator argument in the first joiner has a default value.

写两个函数似乎有点浪费，如果我们能消除第二个joiner方法，在第一个jioner方法里为separator参数声明一个默认值，那就太好了。

youdao

Separator attribute for XSL: value-of.

value - of的分隔符属性。

youdao