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python学习day10(元组)
阅读量:386 次
发布时间:2019-03-04

本文共 810 字,大约阅读时间需要 2 分钟。

??

?.???????

??????????????????????????????????????????????????????????????????????????????????????????????????????????

?.????

??????????????????????????????????????????????????????????????????????????????????????????????????????????????

???

??????t1=(10,20,30)

???t2=(10)?????????????????????????????

?.???????

??????????????????????????????????????????????????

?1????????

t1=(10,20,30)print(t1[0])  # ??10

?2?index???????????????

tuple=('aa','bb','cc','bb')print(tuple.index('aa'))  # ??0

?3?count????????????????

tuple=('aa','bb','cc','bb')print(tuple.count('aa'))  # ??1

?4?len??????????????

tuple=('aa','bb','cc','bb')print(len(tuple))  # ??4

???????

?????????????????????????????????????????????????????????????????

tuple=('aa','bb','cc',['dd'])tuple[3][0]='tom'print(tuple)  # ??('aa','bb','cc',['tom'])

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