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Tag Archives: undefined behavior
不守標準出了名的M$
問題 今天有人問了這樣一個問題，如何不讓scanf取得指定長度後剩下的字元，被下一個scanf取得 解法 首先我想到的是scanf一個字串，可是如果字串長度剛好，就會造成要再輸入一次，於是我又想到了fflush來清空stdin的緩衝區，查了MSDN，也寫了一個小程式來測試，果然可行，但是…
萬惡的未定義行為
一切罪惡的開始 i = 10; i = i++ + ++i; 請問 i 的值在上面C語言程式執行完後答案為多少?