Question

C++为什么cin可以给数组整体赋值

Answer 1

刚看到你这个问题。然后我去查了c++ documentation。他是这样解释的
character sequence (2)
istream& operator>> (istream& is, char* s);
istream& operator>> (istream& is, signed char* s);
istream& operator>> (istream& is, unsigned char* s);
(2) character sequence
Extracts characters from is and stores them in s as a c-string, stopping as soon as either a whitespace character is encountered or (width()-1) characters have been extracted (if width is not zero).
A null character (charT()) is automatically appended to the written sequence.
The function then resets width to zero.
意思就是>>运算符本来就被重载了可以接受char*为参数，所以就可以写成cin >> a咯，哈哈。