結構體內存對齊的規則

先來幾道簡單的測試題：web // 練習 1 struct S1 { char c1; int i; char c2; }; printf("%d\n", sizeof(struct S1)); //12 // 練習 2 struct S2 { char c1; char c2; int i; }; printf("%d\n", sizeof(struct S2)); //8 //

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