tuple_test=(10,20,30,["list","jim","mary",(123,"xuhongmei")],true,33)
for item in tuple_test:
print(item)
"""返回的結果
1020
30['list', 'jim', 'mary', (123, 'xuhongmei')]
true
33"""
tuple_test=(10,20,30,["list","jim","mary",(123,"xuhongmei")],true,33)
tuple_test[3][3]="yx"
print(tuple_test)
"""返回的結果
(10, 20, 30, ['list', 'jim', 'mary', 'yx'], true, 33)
"""tuple_test=(10,20,30,["list","jim","mary",(123,"xuhongmei")],true,33)
print(tuple_test)
"""返回的結果
(10, 20, 30, ['list', 'jim', 'mary', (123, 'xuhongmei'), 'yuxianming'], true, 33)
"""del tuple_test[0]
print(tuple_test)
"""返回結果報錯
nameerror: name 'tuple_test' is not defined
"""tuple_test=(10,20,30,["list","jim","mary",(123,"xuhongmei")],true,33)
v=tuple_test[3][3]
print(v)
"""返回的結果
(123, 'xuhongmei')
"""tuple_test=(10,20,30,["list","jim","mary",(123,"xuhongmei")],true,33)
v1=tuple_test[1:3]
print(v1)
"""返回的結果
(20, 30)
"""tuple_test=(10,20,30,["list","jim","mary",(123,"xuhongmei")],true,33)
v2=list(tuple_test)
print(v2)
"""返回的結果
[10, 20, 30, ['list', 'jim', 'mary', (123, 'xuhongmei')], true, 33]
"""str_test=""
for item in tuple_test:
item=str(item)
str_test=str_test+item
print(str_test)
"""返回的結果
102030['list', 'jim', 'mary', (123, 'xuhongmei')]true33
"""tuple_test=(10,20,30,["list","jim","mary",(123,"xuhongmei")],true,33,33,20,10)
v3=tuple_test.count(10)
print(v3)
"""返回的結果
2"""
tuple_test=(10,20,30,["list","jim","mary",(123,"xuhongmei")],true,10,33,20,10)
v4=tuple_test.index(10,2,8) 從下標2位置開始一直到8,第1個出現"10"的索引位置是5
print(v4)
"""返回結果
5"""
第七章 資料過濾
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第七章 String型別相關
1 如何建立string型別物件 string str abc 最常用 string string new string 建立乙個物件 string string new string abc 建立兩個物件,乙個為abc字串物件,乙個為new string 2 字串剪下 substring 1,3 ...
第七章 對映與集合型別
方法一dict1 dict2 print dict1,dict2結果 方法二 用dict fdict dict x 1 y 2 print fdict結果方法三 fromkeys ddict fromkeys x y 1 print ddict結果例子dict2 for key in dict2.k...