如何将多行“if elif”放在一行Python中

Question

这是我的代码，我想把这一切放在一行：

def GetKey(self, key):

    if key == "externalCode":
        return "ExternalCode"
    elif key == "name":
        return "Name"
    elif key == "description":
        return "Description"
    elif key == "remind-indays":
        return "RemindInDays"
    elif key == "is-delegate-supported":
        return "IsDelegateSupported"
    elif key == "escalation":
        return "Escalation"

Answer 1

使用字典

key_map = {"externalCode": "ExternalCode", "name": "Name", "description": "Description", "remind-indays": "RemindInDays", "is-delegate-supported": "IsDelegateSupported", "escalation": "Escalation"}

def GetKey(self, key):
    return key_map[key];

如果提供的密钥无效，则会引发错误。如果确实希望返回None（与函数一样），请使用dict.get()方法

def getKey(self, key):
    return key_map.get(key)