用户 tom 的主目录有执行权限,但是没有读权限,所以用户 ian 不能列出内容,但是如果知道对象存在,就可以访问目录下的对象。
User tom's home has execute but not read permission, so user ian cannot list the contents, but can access objects within the directory if he knows they exist.
下面列出的内容可能对你来说并不新鲜,但都是值得反复强调的。
The contents of this list might not be new, but they bear repeating.
只列出返回适当内容类型的规则(图41)。
Only rules that return the appropriate content type are listed (Figure 41).
This is an outcome matrix; this tells us everything that was in the game.
它是一个列出了博弈所有内容的矩阵
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