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我在我的网站上包含了jQuery 1.9.1的缩小版本，并注意到 javascript 代码有 2 个换行符。换行是否有原因？我认为缩小器应该删除这些。如果我删除它们，它看起来仍然有效，但我不确定这样做是否有任何风险。