basic_string::back
Returns a reference to the last element in the string.
const_reference back() const;
reference back();
반환 값
A reference to the last element of the string, which must be non-empty.
요구 사항
헤더: <string>
네임스페이스: std
Returns a reference to the last element in the string.
const_reference back() const;
reference back();
A reference to the last element of the string, which must be non-empty.
헤더: <string>
네임스페이스: std