L = [ ['Apple','Google','Microsoft'], ['Java','Python','Ruby','PHP'], ['Adam','Bart','Lisa'] ]
print(L[0][0])
print(L[1][1])
print(L[2][2])
classmates = ['Michael','Bob','Tracy'] print('classmates=', classmates) print('len(classmates)=',len(classmates)) print('classmates[0] =',classmates[0]) print('classmates[1] =',classmates[1]) print('classmates[2] =',classmates[2]) print('classmates[-1] =',classmates[-1]) classmates.pop() print('classmates =',classmates)
classmates = ('Michael','Bob','Tracy') print('classmates =',classmates) print('len(classmates) =', len(classmates)) print('classmates[0] =', classmates[0]) print('classmates[1] =', classmates[1]) print('classmates[2] =', classmates[2]) print('classmates[-1] =',classmates[-1])
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翁岚敏
-- coding:utf-8 --
L = [ ['Apple','Google','Microsoft'], ['Java','Python','Ruby','PHP'], ['Adam','Bart','Lisa'] ]
打印Apple:
print(L[0][0])
打印Python：
print(L[1][1])
打印Lisa:
print(L[2][2])
the_list.py
!/sr/bin/env python3
-- coding:utf-8 --
classmates = ['Michael','Bob','Tracy'] print('classmates=', classmates) print('len(classmates)=',len(classmates)) print('classmates[0] =',classmates[0]) print('classmates[1] =',classmates[1]) print('classmates[2] =',classmates[2]) print('classmates[-1] =',classmates[-1]) classmates.pop() print('classmates =',classmates)
the_tunple.py
！/usr/bin/env python3
-- coding: utf-8 --
classmates = ('Michael','Bob','Tracy') print('classmates =',classmates) print('len(classmates) =', len(classmates)) print('classmates[0] =', classmates[0]) print('classmates[1] =', classmates[1]) print('classmates[2] =', classmates[2]) print('classmates[-1] =',classmates[-1])