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SNH48-刘慈欣

#1 Created at ... [Delete] [Delete and Lock User]

String s = "" + (char)a + (char)b + (char)c;

永夜闲阶

#2 Created at ... [Delete] [Delete and Lock User]

有个疑问，为什么把空字符串放在 后面就不行了呢？

Professor_Nyan-pasu

#3 Created at ... [Delete] [Delete and Lock User]

 因为 char + char 的结果不是 string

" " + char 的结果是 string

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