數條c++問題,請高手解答

[peter022]

1.The following code multiplies an unsigned integer a by 9.
((a << 3) + a)
2.The following expression is always true, assuming a is an integer that has beenpreviously dened and initialized to 0.
(a = 3 - 4)
3.The following expression is always true (note that the operator < is left asso-ciative).
(1/3 < 1/2 < 1)
4.The following code outputs the number 5.
if(2 < 3) if(3 < 2); else cout << 5;
5.The following statements will give a compilation error.
int a = 0;
const int FACTOR = a++;
(對或錯?),(請加解釋)

6.Consider the following code:
int a = 1, b = 10;
int c = (a++) - (++b);
int d = (a++) + (++c);
b = ++d;
What are the values of the following variables after executing the above code?(請列出步驟及解釋)
a = 3
b =

[ldming]

ding !!

[星羽]

繁体+e文 = =b

[baihacker]

楼主结贴率很低...米兴趣了.

[backway]

UP

[qqwx_1986]

[Quote=引用 2 楼 Chiyer 的回复:]
繁体+e文 = =b
[/Quote]
台湾的？

[htqx]

第一个在式子里面修改了变量自身。会有问题呢

[猫已经找不回了]

繁体,加英文..真是..

[cutebear2008]

你用 简体中文发表的话 我会考虑去看看!!!!!!!!!!!!!!!

[peter022]

1.The following code multiplies an unsigned integer a by 9.
((a < < 3) + a)
2.The following expression is always true, assuming a is an integer that has beenpreviously de ned and initialized to 0.
(a = 3 - 4)
3.The following expression is always true (note that the operator < is left asso-ciative).
(1/3 < 1/2 < 1)
4.The following code outputs the number 5.
if(2 < 3) if(3 < 2); else cout < < 5;
5.The following statements will give a compilation error.
int a = 0;
const int FACTOR = a++;
(对或错?),(请加解释)

6.Consider the following code:
int a = 1, b = 10;
int c = (a++) - (++b);
int d = (a++) + (++c);
b = ++d;
What are the values of the following variables after executing the above code?(请列出步骤及解释)
a = 3
b =