×

×

age = 36 txt = "My name is John, and I am @(2)" print(txt.format(age))

age = 36 txt = "My name is John, and I am {}" print(txt.format(age))

age = 36 txt = "My name is John, and I am {0}" print(txt.format(age))

不正确

点击 这里 再试一次。

正确！

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