Python Learning Note "09" list, tuples

　　Definition List

1 names = ["zhangyang"""Guyun "" Xiangpeng""xuliangchen"]

　　To take a value from a list by subscript

1 Print (Names[0], names[2])

　　Slices: Fetching multiple elements

1 Print(Names[1:3])#take the second to third value note: Gu Tou regardless of the end of the2 3 Print(Names[0:3])#take the first to the third value4 5 Print(Names[-1])#take the last value6 7 Print(Names[-2])#take the second-lowest value8 9 Print(Names[-3:-1])#take the third to the bottom of the last value note: From left to right valueTen  One Print(names[-2:])#take the penultimate to the last value of the countdown Note: Omit the value after the colon, take the last A  - Print(Names[:3])#take the first to third value note: Omit the value before the colon, and start with the first value -  the Print(names[:])

Append Element

1 names.append ("leihaidong")

inserting elements

1 " Chenzhonghua " )2"xinzhiyu")

　　modifying elements

1 " Xiedi "

Delete Element

1 names.remove ("chenzhonghua")  #  method One 23  del names[1]  #  method Two 45 names.pop ()  # no subscript, the last one is deleted by default 6 7 names.pop (1)  #  method Three

Find Element

1 Print (Names.index ("xiedi")) 2 3 Print (Names[names.index ("xiedi")])

　　Statistical elements

1 Print (Names.count ("chenzhonghua"))

Clear List

1 names.clear ()

　　Reverse List

1 names.reverse ()

Sort List

1 names.sort ()

Python Learning Note "09" list, tuples