dict1 =
dict1['phone'] = 12345678912
print(dict1)
d:\python\python37\python.exe c:/users/administrator/desktop/小嫻python/整理/整理csdn/筆記四.py
process finished with exit code 0
dict1 =
dict1['age'] = 21
print(dict1)
d:\python\python37\python.exe c:/users/administrator/desktop/小嫻python/整理/整理csdn/筆記四.py
process finished with exit code 0
dict1 =
result = dict1['age']
print(result)
d:\python\python37\python.exe c:/users/administrator/desktop/小嫻python/整理/整理csdn/筆記四.py
20process finished with exit code 0
dict1 =
result = dict1.get('name')
print(result)
result1 = dict1.get('phone', '您輸入的索引不在字典中！')
print(result1)
d:\python\python37\python.exe c:/users/administrator/desktop/小嫻python/整理/整理csdn/筆記四.py
張三您輸入的索引不在字典中！
process finished with exit code 0
dict1 =
for key in dict1:
print('key:{} value:{}'.format(key, dict1[key]))
d:\python\python37\python.exe c:/users/administrator/desktop/小嫻python/整理/整理csdn/筆記四.py
key:name value:張三
key:*** value:女
key:age value:20
process finished with exit code 0
dict1 =
for key, values in dict1.items():
print('key:{} values:{}'.format(key, values))
d:\python\python37\python.exe c:/users/administrator/desktop/小嫻python/整理/整理csdn/筆記四.py
key:name values:張三
key:*** values:女
key:age values:20
process finished with exit code 0
dict1 =
del dict1['age']
print(dict1)
d:\python\python37\python.exe c:/users/administrator/desktop/小嫻python/整理/整理csdn/筆記四.py
process finished with exit code 0
dict1 =
dict1.pop('***')
print(dict1)
d:\python\python37\python.exe c:/users/administrator/desktop/小嫻python/整理/整理csdn/筆記四.py
process finished with exit code 0
dict1 =
result = dict1.popitem()
print(dict1)
print(result)
d:\python\python37\python.exe c:/users/administrator/desktop/小嫻python/整理/整理csdn/筆記四.py
('age', 20)
process finished with exit code 0
dict1 =
dict1.clear()
print(dict1)
d:\python\python37\python.exe c:/users/administrator/desktop/小嫻python/整理/整理csdn/筆記四.py
{}process finished with exit code 0
dict1 =
result = dict1.keys()
print(result)
d:\python\python37\python.exe c:/users/administrator/desktop/小嫻python/整理/整理csdn/筆記四.py
dict_keys(['name', '***', 'age'])
process finished with exit code 0
dict1 =
result = dict1.values()
print(result)
d:\python\python37\python.exe c:/users/administrator/desktop/小嫻python/整理/整理csdn/筆記四.py
dict_values(['張三', '女', 20])
process finished with exit code 0
dict1 =
dict2 = dict1.copy()
print(dict2)
d:\python\python37\python.exe c:/users/administrator/desktop/小嫻python/整理/整理csdn/筆記四.py
process finished with exit code 0
dict1 =
dict2 =
dict1.update(dict2)
print(dict1)
d:\python\python37\python.exe c:/users/administrator/desktop/小嫻python/整理/整理csdn/筆記四.py
process finished with exit code 0
dict1 =
dict1.setdefault('phone', '12345678912')
print(dict1)
dict1.setdefault('婚否')
print(dict1)
d:\python\python37\python.exe c:/users/administrator/desktop/小嫻python/整理/整理csdn/筆記四.py
process finished with exit code 0
keys = ('name', '***', 'age')
dict1 = dict.fromkeys(keys, 100)
print(dict1)
dict1 = dict1.fromkeys(keys)
print(dict1)
d:\python\python37\python.exe c:/users/administrator/desktop/小嫻python/整理/整理csdn/筆記四.py
process finished with exit code 0
Python筆記之字典
range start,end step 2.建立字典的語法 dictionary 通過對映函式建立 dictionary dictionary zip list1,list2 通過給定的 關鍵字引數 建立字典 dictionary dict key1 value1,key2 value2,keyn...
Python學習筆記之字典
字典 dict 是python中的基本資料型別之一，是可變的無序集合，以鍵值對為基本元素的可以儲存各種資料型別的集合，用 表示字典的開始和結束，元素之間用,逗號分隔，和json資料類似。字典中的元素由鍵 key 和值 value 組成，中間用冒號做分隔。注意，字典中的鍵是不可變型別。以下是乙個典型的...
Python學習筆記之字典
一 建立和使用字典 1 建立字典 phonebook 2 dict,通過對映建立字典 items name gumby age 34 d dict items d 顯示 dict，通過關鍵字建立字典 d dict name gumby age 34 d 顯示 3 字典格式化字串 phonebook ...