用于存储AND,OR关系,关联的代码

# 示例数据
data = [
    {"name": "Alice", "age": 25, "gender": "female"},
    {"name": "Bob", "age": 30, "gender": "male"},
    {"name": "Charlie", "age": 35, "gender": "male"},
    {"name": "David", "age": 40, "gender": "female"},
]

# 查询年龄大于等于30且性别为女性的用户
result = []
for item in data:
    if item["age"] >= 30 and item["gender"] == "female":
        result.append(item)

print(result)

# 示例数据
data = {
    "Alice": "New York",
    "Bob": "San Francisco",
    "Charlie": "Los Angeles",
    "David": "Chicago",
}

# 查询用户及其所在城市
for name, city in data.items():
    print(f"{name} lives in {city}")