# 字典的基本操作 student = { "name": "张三", "age": 20, "grade": "大二" } student["major"] = "计算机" # 添加新键值对 print(f"学生信息: {student}") print(f"姓名: {student['name']}") print(f"所有键: {student.keys()}")
# 字典的基本操作 student = { "name": "张三", "age": 20, "grade": "大二" } student["major"] = "计算机" # 添加新键值对 print(f"学生信息: {student}") print(f"姓名: {student['name']}") print(f"所有键: {student.keys()}")