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:book:【译】UCB CS61a SICP Python
https://www.gitbook.com/book/wizardforcel/sicp-py/details
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Update 2.2.md #6

Closed vsxd closed 6 years ago

vsxd commented 6 years ago

directly call method getitem() will receive a NameError we can use x.__getitem__(0) or index grammar x[0]