It seems like if you want to get the keys of a mapping, you ask for them; otherwise, give me the whole mapping (constituted by a set of key-value pairs). Is there a historical reason for this?
看起来如果你想获得一个映射的键,你就要求它们;否则,给我整个映射(由一组键值对组成)。这有历史原因吗?
1 个解决方案
#1
9
Check out this thread for a discussion on the reasons behind this behavior (including that Guido likes it, and it's not likely to change).
查看此主题以讨论此行为背后的原因(包括Guido喜欢它,并且它不太可能改变)。
#1
9
Check out this thread for a discussion on the reasons behind this behavior (including that Guido likes it, and it's not likely to change).
查看此主题以讨论此行为背后的原因(包括Guido喜欢它,并且它不太可能改变)。