python 字典 key 和value 互換

舉個例子

province = {"皖": 0,"滬": 1,"津": 2,"渝": 3,"冀": 4,"晉": 5,"蒙": 6,"遼": 7,"吉": 8,"黑": 9,"蘇": 10,"浙": 11,"京": 12,"閩": 13,"贛": 14,"魯": 15,"豫": 16,"鄂": 17,"湘": 18,"粵": 19,"桂": 20,"瓊": 21,"川": 22,"貴": 23,"云": 24,"西": 25,"陜": 26,"甘": 27,"青": 28,"寧": 29,"新": 30 } province = {value: key for key, value in province.items()} char = {"a" : 0,"b" : 1,"c" : 2,"d" : 3,"e" : 4,"f" : 5,"g" : 6,"h" : 7,"j" : 8,"k" : 9,"l" : 10,"m" : 11,"n" : 12,"p" : 13,"q" : 14,"r" : 15,"s" : 16,"t" : 17,"u" : 18,"v" : 19,"w" : 20,"x": 21,"y" : 22,"z" : 23,"0" : 24,"1" : 25,"2" : 26,"3" : 27,"4" : 28,"5" : 29,"6" : 30,"7" : 31,"8" : 32,"9" : 33 } char = {value: key.upper() for key, value in char.items()}

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