Jun 19th, 2011, 12:42 | #1 |
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有括号的优先级最高,没有括号的先乘除后加减 9÷3(1+2)=9 9÷(3(1+2))=1 |
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Jun 20th, 2011, 13:09 | #2 |
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Jul 7th, 2011, 22:38 | #3 |
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Jul 9th, 2011, 19:16 | #4 |
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这里有篇类似的讨论,看来还真是众说纷纭 http://knowyourmeme.com/memes/48293 |
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