대입 연산

y 변수에 x 값 대입                              y = x;

y 변수에 x 추가                                             y += x;
y 변수에서 x 빼기                                      y -= x;
y 변수에 x 곱하기                                        y *= x;
y 변수를 x로 나누기                                           y /= x;
y변수를 x로 나눈 나머지                            y %= x;
y의 이진수 표현을 오른쪽으로 x비트 이동        y >>= x;
y의 이진수 표현을 x비트로 왼쪽으로 이동         y <<= x;
y와 x의 이진수 표현의 비트 연산             y &= x;
y 및 x의 이진수 표현의 OR 비트 연산              y |= x;
y 및 x의 이진수 표현의 제외 OR 비트 연산    y ^= x;

 y=x=3;