使用元组将值添加到字典键

Question

代码是我写的

population = {
    'Shanghai': 17.8,
    'Istanbul': 13.3,
    'Karachi': 13.0,
    'Mumbai': 12.5
    }
bob, chase, exacu = 32, 42, 53
ha = bob, chase, exacu
population['bob', 'chase', 'exacu'] = ha
print(population)

我收到了输出

{'Shanghai': 17.8, 'Istanbul': 13.3, 'Karachi': 13.0, 'Mumbai': 12.5, ('bob', 'chase', 'exacu'): (32, 42, 53)}

我期待输出

{'Shanghai': 17.8, 'Istanbul': 13.3, 'Karachi': 13.0, 'Mumbai': 12.5, 'bob': 32, 'chase': 42, 'exacu': 53}

谁能解释一下如何收到预期的输出？谢谢！

Answer 1

你不能像这样分配给多个键，那只会使一个键由元组组成。

population = {
    'Shanghai': 17.8,
    'Istanbul': 13.3,
    'Karachi': 13.0,
    'Mumbai': 12.5
    }
bob, chase, exacu = 32, 42, 53
ha = bob, chase, exacu

keys = 'bob', 'chase', 'exacu'
for x,y in zip(keys,ha):
    population[x] = y

print(population)

>>> {'Shanghai': 17.8, 'Istanbul': 13.3, 'Karachi': 13.0, 'Mumbai': 12.5, 'bob': 32, 'chase': 42, 'exacu': 53}

使用元组将值添加到字典键

using tuples to add values to dictionary keys

dictionary

tuples

python-3.9