如何將字典名稱作為參數傳遞給我的函數

Question

data = {'employer':'Apppe, Inc', 'title': 'Senior Software Engineer', 'manager': 'Steve Jobs', 'city': 'Cupertino'}


def my_function(**data):
    employername  = data['employer']
    title = data['title']
    manager = data['manager']
    city = data['city']
    print(city)
    
    
my_function(**data)
username = input("Enter dictionary name:")
my_function(**username)

如果我將文本數據輸入到輸入中。 我收到這個奇怪的錯誤。

Enter dictionary name:data
Traceback (most recent call last):
  File "/data/user/0/ru.iiec.pydroid3/files/accomp_files/iiec_run/iiec_run.py", line 31, in <module>
    start(fakepyfile,mainpyfile)
  File "/data/user/0/ru.iiec.pydroid3/files/accomp_files/iiec_run/iiec_run.py", line 30, in start
    exec(open(mainpyfile).read(),  __main__.__dict__)
  File "<string>", line 14, in <module>
TypeError: __main__.my_function() argument after ** must be a mapping, not str

[Program finished]

Answer 1

您可以使用locals()函數獲取所有局部變量的字典，然后獲取用戶指定的局部變量。 像這樣：

data = {'employer':'Apppe, Inc', 'title': 'Senior Software Engineer', 'manager': 'Steve Jobs', 'city': 'Cupertino'}


def my_function(**data):
    employername  = data['employer']
    title = data['title']
    manager = data['manager']
    city = data['city']
    print(city)
    
    
my_function(**data)
username = input("Enter dictionary name:")
my_function(**(locals()[username]))

注意：小心使用此功能並始終清理用戶輸入，如果不這樣做的話。 那么你就可以讓自己接受注入攻擊。