我正在學習 Python 函數的在線課程。我收到一個 NameError ，如下所示。有人能弄清楚為什么我會收到這樣的錯誤嗎？def student_details (**details_dictionary):     if 'name' in details :         print ("Name:", details['name'] )     if 'age' in details :         print ("Age:", details['age'] )     if 'college' in details :         print ("College:", details['college'] )student_details(name="John") NameError Traceback (most recent call last) <ipython-input-24-9617ce938851> in <module> ----> 1 student_details(name="John") <ipython-input-23-1424bf8f28d7> in student_details(**details_dictionary)       1 def student_details (**details_dictionary): ----> 2     if 'name' in details :       3         print ("Name:", details['name'] )       4     if 'age' in details :       5         print ("Age:", details['age'] )NameError: name 'details' is not defined