定义后如何解决“名称未定义”？

Question

我收到一个错误“ NameError：未定义名称'first_name'”。

narek = {
    "first_name": "Narek",
    "last_name": "Kuloyan",
    "age": 27,
    "city": "Yerevan",
    }
…
people = [narek, tigran, karen]
for mard in people:
    for tvyal, info in mard.items():
        anun = info[first_name] + info[last_name]
        print("Anun azganun: "+ anun.title())
        print("\nTariq: " + str(info[age]))

Answer 1

如果我正确理解了您期望实现的目标，那么这段代码就可以完成工作。

narek = {
    "first_name": "Narek",
    "last_name": "Kuloyan",
    "age": 27,
    "city": "Yerevan",
    }

people = [narek]

for mard in people:
    anun = mard['first_name'] + mard['last_name']
    print("Anun azganun: "+ anun.title())
    print("\nTariq: " + str(mard['age']))