```python

dict = {'Alice': '2341', 'Beth': '9102', 'Cecil': '3258'}
dict1 = { 'abc': 456 }
dict2 = { 'abc': 123, 98.6: 37 }
print(dict)
print(dict1)
print(dict2)

{'Alice': '2341', 'Beth': '9102', 'Cecil': '3258'}
{'abc': 456}
{'abc': 123, 98.6: 37}

dict = {'Name': 'Runoob', 'Age': 7, 'Class': 'First'}

print ("dict['Name']: ", dict['Name'])
print ("dict['Age']: ", dict['Age'])

dict['Name']: Runoob
dict['Age']: 7

dict = {'Name': 'Runoob', 'Age': 7, 'Class': 'First'}

print ("dict['Alice']: ", dict['Alice'])

---------------------------------------------------------------------------

KeyError Traceback (most recent call last)

<ipython-input-4-726b75248a57> in <module>
      1 dict = {'Name': 'Runoob', 'Age': 7, 'Class': 'First'}
      2 
----> 3 print ("dict['Alice']: ", dict['Alice'])


KeyError: 'Alice'

dict = {'Name': 'Runoob', 'Age': 7, 'Class': 'First'}

dict['Age'] = 8 # 更新 Age
dict['School'] = "菜鸟教程" # 添加信息


print ("dict['Age']: ", dict['Age'])
print ("dict['School']: ", dict['School'])

dict['Age']: 8
dict['School']: 菜鸟教程

dict = {'Name': 'Runoob', 'Age': 7, 'Class': 'First'}

del dict['Name'] # 删除键 'Name'
dict.clear() # 清空字典
del dict # 删除字典

print ("dict['Age']: ", dict['Age'])
print ("dict['School']: ", dict['School'])

---------------------------------------------------------------------------

TypeError Traceback (most recent call last)

<ipython-input-6-acbbe1348922> in <module>
      5 del dict # 删除字典
      6 
----> 7 print ("dict['Age']: ", dict['Age'])
      8 print ("dict['School']: ", dict['School'])


TypeError: 'type' object is not subscriptable

dict = {'Name': 'Runoob', 'Age': 7, 'Name': '小菜鸟'}

print ("dict['Name']: ", dict['Name'])

dict['Name']: 小菜鸟

dict = {['Name']: 'Runoob', 'Age': 7}

print ("dict['Name']: ", dict['Name'])

---------------------------------------------------------------------------

TypeError Traceback (most recent call last)

<ipython-input-8-c4866a957fa9> in <module>
----> 1 dict = {['Name']: 'Runoob', 'Age': 7}
      2 
      3 print ("dict['Name']: ", dict['Name'])


TypeError: unhashable type: 'list'

{'pear', 'banana', 'orange', 'apple'}





{'b', 'd', 'l', 'm', 'r', 'z'}

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