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问题详情

有如下代码： String str, str1; str="This is a string"; str1=str; str1="String"; str=str1; str1="String1"; 此时str的值会怎样：（）

A、str不变

B、"String"

C、"String1"

D、不清楚

时间：2021-09-01 23:07 关键词：青书学堂东北林业大学 JAVA程序设计(专升本)

答案解析

B

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