江苏省五年一贯制专转本《C语言程序设计》模拟试卷二(晓庄)

江苏省五年一贯制专转本

《C语言程序设计》模拟试卷二（晓庄）

一、填空題（每题2分，共16分）

1.整型常量默认类型是、实型默认类型是、函数默认类型是

2. 若k为 int整型变量且赋值7，请写出赋值表达式 k *= k + 3的运算结果 .

3. 设x，y，z均为int型变量，请写出描述"x,y中有一个为负数"的表达式:

4. 已知A=7.5，B=2，C=3.6，表达式A>B&&C>A || AB的值是 .

5. 以下程序的运行结果是。

main()

{ printf("%s,%5.3s","computer","computer"); }

6. 设y为int型变量，请写出描述"y是奇数"的表达式

7. 若a是int型变量，则下面表达式的值为 ,a的值为。

(a=4*5,a+6),a++

8.若有定义：int a=10 ，b=9 ，c=8；执行下列语句后，变量b中的值是。

c=（a-=（b-5））； c=（a%11）+（b=3）；

二、单项选择题（每题2分，共40分）

1．下列四组字符串中都可以用作Ｃ语言程序标识符的一组是____。

? A) print B) i\am C) Pxq D) str_l

??? _3d one_half My->book Cpp

?? oodb start$it line# pow

??? aBc 3pai His.age while

2．下列关于C语言的叙述错误的是____。

A) 大写字母和小写字母的意义相同

B) 不同类型的变量可以在一个表达式中

C) 在赋值表达式中等号(=)左边的变量和右边的值可以是不同类型

D) 同一个运算符号在不同的场合可以有不同的含义

3．已知 long i=65539；执行语句printf("%d",i)；屏幕显示____。

A) 65539 B) -3 C) 3 D) 程序不能执行

4.字符g赋给字符变量c，正确的表达式是____。

A) c=\147 B) c="\147" C) c='\147' D) c='0147'

5.已知：char a；int b；float c；执行语句"c=a+b+c；"后，变量c的数据类型是____。

A) int B) char C) float D) double

6.温度华氏和摄氏的关系是: C=5/9 (F-32)。已知：float C,F；由华氏求摄氏的正确的赋值表达式是____。

A) C=5/9(F-32) B) C=5*(F-32)/9

C) C=5/9*(F-32) D) 三个表达式都正确

7.逗号表达式"(a=3*5,a*4),a+15"的值是____。

A) 15 B) 60 C) 30 D) 不确定

8．已知int i=10；表达式"20-0<=i<=9"的值是____。

A) 0 B) 1 C) 19 D) 20

9．在下列结论中，只有一个是错误的，它是____。

A) Ｃ语言允许函数的递归调用

B) Ｃ语言中的continue语句，可以通过改变程序的结构而省略

C) 有些递归程序是不能用非递归算法实现的

D) C语言中不允许在函数中再定义函数

10．下面程序可能的输出结果是____。

main()

{ int a,b；

scanf("%2d%3d",&a,&b)；

printf("a=%d b=%d\n",a,b)；

}

A) a=12 b=34 B) a=123 b=45

C) a=12 b=345 D) 语句有错误

11．以下程序段的输出结果是____。

int a=10,b=50,c=30；

if(a>b) a=b；b=c；c=a；

printf("a=%d b=%d c=%d\n",a,b,c)；

A) a=10 b=50 c=10 B) a=10 b=30 c=10

C) a=50 b=30 c=10 D) a=50 b=30 c=50

12．以下程序的输出结果是____。

main()

{ int a=0,b=1,c=0,d=20；

if(a) d=d-10；

else if(!b)

if(!c) d=15；

else d=25；

printf("d=%d\n",d)；

}

A) d=10 B) d=15 C) d=20 D) d=25

13．下面程序的输出结果为____。

main()

{ int a=1,b=0；

switch(a)

{ case 1: switch (b)

{ case 0: printf("**0**")； break；

case 1: printf("**1**")； break；

}

case 2: printf("**2**")； break；

}

}

A) **0** B) **0****2** C) **0****1****2** D) 有语法错误

14．下面程序的输出是____。

main()

{ int num=0；

while(num<=2)

{ num++；

printf("%d\n",num)；

}

}

A) 1 B) 1 C) 1 D) 1

2 2 2

3 3

4

15．下面程序的输出结果是____。

#include

#include

main( )

{ char str[100] ="How do you do"；

strcpy( str + strlen(str)/2, "es she")；

printf("%s\n", str)；

}

A) How do you do B) es she

C) How are you D) How does she

16.有以下程序

main()

{char a[]={’a’,’b’,’c’,’d’,’e’,’f’,’g’,’h’,’\0’}; int i,j;

i=sizeof(a); j=strlen(a);

printf("%d,%d ",i,j);

}

程序运行后的输出结果是______。

A) 9,9 B) 8,9 C) 1,8 D) 9,8

17.以下程序中的函数reverse的功能是将a所指数组中的内容进行逆置。void reverse(int a[],int n)

{ int i,t;

for(i=0;i

{t=a[i];a[i]=a[n-1-i];a[n-1-i]=t;}

}

main()

{int b[10]={1,2,3,4,5,6,7,8,9,10}; int i,s=0;

reverse(b,8);

for(i=6;i<10;i++) s+=b[i];

printf("%d ",s);

}

程序运行后的输出结果是______。

A) 22 B) 10 C) 34 D) 30

18.以下程序的输出结果是

A)0 B)29 C)31 D)无定值

fun(int x,int y,int z)

{z=x*x+y*y;}

main()

{int a=31;

fun(5,2,a);

printf(“%d”,a);

}

19.有以下程序

#include

main()

{ int i,j,m=55;

for(i=1;i<=3;i++)

for(j=3;j<=i;j++) m=m%j;

printf("%d\n",m);

}

程序的运行结果是。

A)0 B)1 C)2 D)3

20.有以下程序

void f(int v, int w)

{ int t;

t=v;v=w;w=t;

}

main()

{ int x=1,y=3,z=2;

if(x>y) f(x,y);

else if(y>z) f(y,z);

else f(x,z);

printf(“%d,%d,%d\n”,x,y,z);

}

执行后输出结果是。

A) 1,2,3 B) 3,1,2 C) 1,3,2 D) 2,3,1

三、程序填空（每题4分，共16分）

1．下面程序的功能是输出100以内的个位数为6、且能被3整除的所有数。main()

{ int i,j；

for(i=0；；i++)

{ j=i*10+6；

if( ) countinue；

printf("%d",j)；

}

}

2．下面程序的功能是用辗转相除法求两个正整数m和n的最大公约数。hcf(int m,int n)

{ int r；

if(m

{ r=m；

①；

n=r；

}

r=m%n；

while( ②)

{ m=n；

n=r；

r=m%n；

}

③；

}

3．下面程序的功能是删除字符串s中的空格。

#include

main()

{ char *s="Beijing ligong daxue"；

int i,j；

for(i=j=0；s[i]!='\0'；i++)

if(s[i]!= ' ') ①；

else ②；

s[j]= '\0'；

printf("%s",s)；

}

4．下面程序的功能是显示具有n个元素的数组s中的最大元素。#define N 20

main()

{ int i,a[N]；

for(i=0；i

scanf("%d",&a[i])；

printf("%d\n", ①)；

}

fmax(int s[],int n)

{ int k,p；

for(p=0,k=p；p

if(s[p]>s[k]) ② ；

return(k)；

}

四、写出以下程序运行结果（每题3分，共12分）

阅读下列程序，将输出结果写到各题右侧的空白处。

1．main()

{int x=15;

while(x<20)

{x++;

if(x%3!=0){x++;break;}

else continue;

}

printf(″%d\n″,x)；

}

2.

fun(int a[],int i,int j)

{int t;

if(i

{t=a[i];a[i]=a[j];a[j]=t;}

i++;j--;

fun(a,i,j);

}

}

main()

{int x[]={2,4,6},i;

fun(x,0,2);

for(i=0;i<3;i++) printf(″%2d″,x[i]); printf(″\n″);

}

3.程序运行时，输入一个整数5

main()

{int a,b[10],c,i=0;

printf(″输入一个整数\n″);

scanf(″%d″,&a);

while(a!=0)

{c=a%2;

a=a/2;

b[i]=c;

i++;

}

for(;i>0;i--)printf(″%d″,b[i-1]);

}

4. 下面程序的运行结果是。 #include

main()

{ int i,j=4;

for(i=j;i<=2*j;i++)

switch(i%j)

{ case 0:

case 1:printf(“*”);break; case 2:printf(“#”);

}

}

五、编程题（每题8分，共16分）

1. 利用2π= (7)

656543432122??????=×…的前100项之积计算π的值。 2. 已知数组声明为”int a[10] = {0, 10, 20, 30, 40, 50, 60, 70, 80, 90};”, 10个数组元素是按升序排列的(假设没有重复值)。输入一个整数n, 如果没有与n 相等的数组元素， 输出 - 1； 否则， 删除与n 相等的数组元素，输出数组元素，要求剩余的九个数组元素仍按升序排列。

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