C++取反交换两个数的值时间:2023-03-09 01:39:41 int a = 1; int b = 2; cout << "a: "<< a << endl; cout << "b: "<< b << endl; a = a ^ b; b = a ^ b; a = a ^ b; cout << "a: " << a << endl; cout << "b: " << b << endl;