L=[ ... ['Apple','Google','Microsoft'], ... ['Java','Python','Ruby','PHP'], ... ['Adam','Bart','Lisa'] ... ] 打印Apple: ... print(L[0][0]) Apple 打印Python: ... print(L[1][1]) Python 打印Lisa: ... print(L[2][2]) Lisa
L=[ ... ['Apple','Google','Microsoft'], ... ['Java','Python','Ruby','PHP'], ... ['Adam','Bart','Lisa'] ... ]
... print(L[0][0]) Apple
... print(L[1][1]) Python
... print(L[2][2]) Lisa
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