解码高级Python以简化代码

Question

我有一个编码,我想解码成简单的编程,如简单的嵌套'for'循环等.我知道对于高级程序员来说这可能是一个愚蠢的问题,但我处于非常基本的编程水平.所以,请任何帮助将不胜感激.

anything = {v: k for k, v in dic.items()} #Assume that 'dic' has already defined.

任何人都可以帮我弄清楚如何阅读这个代码,并将其解码为简单的嵌套循环？提前致谢

Answer 1

语法anything = {v: k for k, v in dic.items()}等同于:

anything = {}
for k, v in dic.items():
    anything[v] = k