能。 参考[with_statement](https://link.segmentfault.com/?enc=lpZpnt1H4VFu5061cdCTnA%3D%3D.YEfbca8Wq3Q9cFCmYPboBQGgxu4%2FssJTRfZTMZ8SMcEIVZ3dGKOEvHtceKcaGXE%2BaZmYkdYQ%2Fzm2lW4RGKlBvBN9t4IFbs9KjRrlR%2Fb%2BIsB3i5K81GNxuI4njGaG9Ht%2F)
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