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字典 (Dictionary)

键值对的集合。

基本操作

person = {
    "name": "小明",
    "age": 18,
    "city": "北京"
}

print(person["name"])  # 访问
person["email"] = "xiaoming@example.com"  # 添加
del person["city"]  # 删除

遍历字典

for key, value in person.items():
    print(f"{key}: {value}")