计算机程序设计第三四章

计算机程序设计第三四章

University

10 Qs

quiz-placeholder

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计算机程序设计第三四章

计算机程序设计第三四章

Assessment

Quiz

Computers

University

Hard

Created by

zaky zhang

Used 1+ times

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

设a、b和c都是int型变量,且a=3,b=0,c=5,则以下值为0的表达式是___

 'a'&&'b'

a&&b||c

 a&&b&&c

a||b&&c

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

在嵌套使用if语句时,C语言规定else总是___

 和之前与其具有相同缩进位置的if配对

和之前与其最近的if配对

和之前与其最近不带else的if配对

和之前的第一个if配对

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

以下程序运行后的输出结果是___

main()

int a=0,b=0;

a=10;

b=20;

printf("a+b=%d\n",a+b);

}

a+b=10

a+b=30

30 

出错

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

以下程序运行后的输出结果是___。

main()

double d=3.2; 

int x,y;

x=1.2;

y=(x+3.8)/5.0;

printf("%d\n",d*y);

}

3

3.2

0

3.07

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

以下程序运行后的输出结果是___。

main()

{  unsigned short a=65536;  int b;

printf("%d\n",b=a);

}

65536

0

1

-1

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

若要求在if后一对圆括号中表示a不等于0的关系,则能正确表示这一关系的表达式为___。

a<>0

!a

a=0

a

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下列叙述中正确的是___。

break语句只能用于switch语句

在switch语句中必须使用default

break语句必须与switch语句中的case配对使用

在switch语句中不一定使用break语句

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