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s1 = s1 + 1; //會造成編譯錯誤，需要明確型別轉換。
s1 += 1; //不會造成編譯錯誤，編譯器會自動進行型別轉換
[C# 筆記] short s1 = 1; s1 = s1 + 1; 有什麼錯? short s1 = 1; s1 += 1; 有什麼錯？
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1
2
s1 = s1 + 1; //會造成編譯錯誤，需要明確型別轉換。
s1 += 1; //不會造成編譯錯誤，編譯器會自動進行型別轉換
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