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                合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。 廣告
                >[success] # 字符串拼接 * 只要`+`兩邊的操作數中有一個操作數是**字符串類型**,則該`+`就被當做**字符串連接符處理**,否則當做**加法運算符處理** * 在類型轉換章節知道`char `類型在做加法運算的時候會轉換為 `int` 類型,因此會拿著字符到計算機內置的`ASCII`碼表中去查對應的數字,然后再進行計算 ~~~ public class VarTest{ public static void main(String[] args){ char a = 'n'; int b = 1; int c = 2; String s = "aaaa"; System.out.println(c+b); // 3 System.out.println(b+c+a); // 113 System.out.println(b+a+c); // 113 System.out.println(b+s+c); // 1aaaa2 b + s 因為s 是字符串此時b+s 作為拼接使用 b+s 拼接后格式是字符串因此 b+s + c 也是個字符串 } } ~~~
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