Python案例100：列表转换为字典

问题

题目：列表转换为字典。
https://www.runoob.com/python/python-exercise-example100.html

代码

• 代码

"""题目：列表转换为字典。"""

# 解题，dict()通过映射函数构造字典
l1=[1,2,3]
l2=["a","b","c"]
dic1=dict(zip(l1,l2))
print(dic1,type(dic1))


# dict()通过传入关键字构造字典
dict2=dict(a1='a', b1='b', t1='t')
print(dict2,type(dict2))

# dict()传入可迭代对象构造字典
dict3=dict([('one', 1), ('two', 2), ('three', 3)])
print(dict3,type(dict3))

• 运行结果
  {1: ‘a’, 2: ‘b’, 3: ‘c’} <class ‘dict’>
  {‘a1’: ‘a’, ‘b1’: ‘b’, ‘t1’: ‘t’} <class ‘dict’>
  {‘one’: 1, ‘two’: 2, ‘three’: 3} <class ‘dict’>

dict()函数

• dict()通过传入关键字构造字典

dict2=dict(a1='a', b1='b', t1='t')
print(dict2,type(dict2))

• dict()通过映射函数构造字典

l1=[1,2,3]
l2=["a","b","c"]
dic1=dict(zip(l1,l2))
print(dic1,type(dic1))

• dict()传入可迭代对象构造字典

dict3=dict([('one', 1), ('two', 2), ('three', 3)])
print(dict3,type(dict3))