注意那些围绕参数名的引号不是必需的（因此通常被省略掉），因为操作符=>将它左边的裸单词（barewords）看作是被引用的字符串。

Note that quotes around the parameter names are not required (and are therefore commonly omitted), because the => operator forces barewords on its left to be treated as quoted strings.

youdao

注意那些围绕参数名的引号不是必需的（因此通常被省略掉），因为操作符=>将它左边的裸单词（barewords）看作是被引用的字符串。

Note that quotes around the parameter names are not required (and are therefore commonly omitted), because the => operator forces barewords on its left to be treated as quoted strings.

youdao