for (int i = 1; i <= 3; i++) {
for (int j = 1; j <= 2; j++) {
cout << "(" << i << ", " << j << ") ";
}
cout << endl;
}
内存中的变量状态
i = ?

j = ?
点击“下一步”开始执行程序
控制台输出 (Console)