> 原文:[https://www . geesforgeks . org/python-dictionary-construction-from-from-from-back-key-values/](https://www.geeksforgeeks.org/python-dictionary-construction ...
> 原文:[https://www . geesforgeks . org/python-程序到交换-字典中的键和值/](https://www.geeksforgeeks.org/python-program-to-swap-keys-and-values-in ...
I am writing a parser that reads assembly source files and tracks the values in each register. I maintain a symbol table (the dict) that I want to update as I parse each instruction. My problem is ...