# 打印Apple:
print(L[0][0],'\n')
# 打印Python:
print(L[1][1],'\n')
# 打印Lisa:
print(L[2][2],'\n')
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master_Hang
# 打印Apple:
print(L[0][0],'\n')
# 打印Python:
print(L[1][1],'\n')
# 打印Lisa:
print(L[2][2],'\n')