执行以下Python代码，如果文件data.txt不存在，输出结果是？ ( )try: with open('data.txt', 'r') as f: content = f.read() print("File read successfully.") except FileNotFoundError: print("File not found.") except Exception as e: print("An error occurred : ", e)
A. File read successfully.
B. File not found.
C. An error occurred : ...
D. 没有任何输出
正确答案：B
试卷来源：202512 CCF-GESP编程能力等级认证Python四级真题