下列程序中，result和result2输出分别是 ( )
long a = 123; int b = 1; long result = a & b; cout<<result<<endl; long a2 = -123; unsigned int b2 = -1; long result2 = a2 & b2; cout<<result2<<endl;
- A. 123 -1
- B. 123 -123
- C. 1 -1
- D. 1 -123
正确答案：D
long a = 123; int b = 1; long result = a & b; cout<<result<<endl; long a2 = -123; unsigned int b2 = -1; long result2 = a2 & b2; cout<<result2<<endl;
正确答案：D
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