So it's an address, it's a pointer, address pointer, synonyms for now, so it's the address of a char so this makes sense because s1 is also the address of a char so if I wanted to make a copy of that address this is absolutely the right syntax.
是一个地址,是一个指针,地址指针,也就是,char型数据的地址,这是有意义的,因为s1也是一个char型数据的地址,所以如果我想要复制那个地址,这个绝对是正确的语法。
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