题解 | 查字典
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https://www.nowcoder.com/practice/ee9c1157f07440f68c86e54a2613a927
d1={'a': ['apple', 'abandon', 'ant'], 'b': ['banana', 'bee', 'become'], 'c': ['cat', 'come'], 'd': 'down'}
a=input()
for i,j in d1.items():
if i==a:
for w in range(len(j)):
print(f"{j[w]}",end=' ')
