So the very last two lines of code I'm saying this, s2 the original string is s1, the copy of the string is s2, but if I haven't lost you, what are we really going to see when we print this?
最后两行代码是这样的,原字符串是s1,那个字符串的拷贝是,但是如果我没有忘记,当我们打印的时候,我们将看到什么?
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