浙江大学2014–2015学年冬季学期
《程序设计基础》课程期末考试试卷
课程号： 211Z0040 ， 开课学院： 计算机学院__
考试试卷：√A卷、B卷（请在选定项上打√）
考试形式：√闭、开卷（请在选定项上打√），允许带 ∕入场
考试日期： 2015 年 01 月 28 日,考试时间： 120 分钟
诚信考试，沉着应考，杜绝违纪.
考生姓名： 学号： 所属院系： _
(注意：答题内容必须写在答题卷上，写在本试题卷上无效)
Section 1: Single Choice(2 marks for each item, total 20 marks)
1. Which one below is NOT a valid identifier in the C programming language? _____.
A. printf | B. _ever | C. “char” | D. true |
| | 岳阳楼记多少字 | |
2. Given a, b and c as three double variables, which one below is NOT equivalent to a/b/c? _____.
A. (a/b)/c | B. a/(b/c) | C. a/(b*c) | D. a/c/b |
| | | |
3. Which function header is NOT correct? _____.
A. void f(void) | B. void f(int i) | C. void f(int i,j) | D. void f(int i, int j) |
| | | |
4. Given the code below, what will be the value of i after the loop? _____.
int i;
while ( i<10 ) i++;
A. 10 | B. 11 | C. 9 | D. None of above. |
| | | |
5. Given the declarations: int a[5], *p=a; which expression is equivalent to the expression p+1 ? _____.
A．a[1] | B. &a+1 | C．a+1 | D. p[2]-1 |
| | | |
6. For the declarations: int a[]={1,2,3,4,5},*p=a+1, y; what will be the value of variable y after executing y=(*p)++; ? _____.
A．y=1 | B．y=2 | C．y=3 | D. Syntax error. |
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7. For the declarations: int *p[2], n[5]; which assignment expression is correct? _____ .
A．p=n | B. p=&n[0] | C．p[0]=n | D. p[0]=n++ |
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8. Given the following code fragment, the loop condition str[i]!=’\0’梆笛 could be replaced by which choice? ______.
char str[20]=”hello, world”;
for (i = 0; str[i] != ‘\0’; i++) putchar(str[i]);
A．str[i] | B．i < 20 | C．!(str[i] = ‘\0’) | D．i <= 20 |
| | | | 就业补贴申请条件
9. Which function-calling statement could be ud, to open a text file entitled “t” and located in the folder “ur” within D diskette, which is opened for the reading and writing operation? ______.
A．fopen("D:\","r") | B. fopen("D:\\ur\\","r+") |
C. fopen("D:\","rb") | D．fopen("D:\\ur\\","w") |
| |
10. In the following code fragments, which item is completely correct? ______.
A．int *p[5]; scanf("%d", p[0]); | B．int *p; scanf("%d", p); |
C．int n[10], *p=n; scanf("%d", p); 母爱滋润我成长 | D．int n, *p; *p= &n; scanf("%d", p); 给我机会 |
| |
Section 2: Fill in the blanks（2 marks for each item, total 30 marks）
1. The value of expression 3/6*2.0 is ________.
2. The value of expression '9'-'0' is _______.
3. Given:
char c = 255;
printf("%d", c);
The output should be: _______.
4. Given:
int b=50;
if ( 1<b<10 ) printf("ok") el printf("no");
the output is _______.
5. The following code fragment will print out _____________________________.
void swap(int *pa, *pb)
{
int *t = pa;
pa = pb;
pb = t;
}
int a = 1, b = 2;
swap(&a, &b);
printf(“%d#%d#”, a, b);
6. The output of the code below is ________.
char *s=”abc”;
while ( *s++ ) if (*s) putchar(*s-1);
7. Given the declaration: char *s;, write a statement which could be ud to allocate 10 bytes from the system and assign the first address to the variable s _____________.
8. Try to u the function-call of 我是主持人fscanf, to replace the function-call of scanf(”%d”,&m); ______________________________________________.
9. Given the declaration: char *s; , write an expression without any function-calling, which is equivalent to the expression strlen(s)==1 _____________________.
10. Given the declaration: int a[3][2]={1,2,3,4,5,6}; what is the value of expression (a[1]+1)[0] ?____________.
11. The value of expression !*(“2015-01-28”+5) is ______________.
12. The output of the code below is ________.
char x[ ]=”hello,world\012345”;
printf(”%d#%d#”，sizeof(x)，strlen(x));
13. The output of the code below is ________.
char *a[3]={"one", "two",”three”}, **p=a;
printf("%s#", *(++p)+1);
printf("%c#", **p-1);
14. Given the declarations: FILE *infp, *outfp;, write a statement: it is ud to write a letter, which is read from a file pointer infp, into the file pointer outfp, which points to an output file. ________________________________________________________.
15. Given the declaration: char s[10]=”12345678”; what will be the value of strlen(s) after executing strcpy(s+2,s+5); ________.
Section 3: Read each of the following programs and answer questions (５marks for each item, total 30 marks)
1. What is the output of the following program? _____________________________.
#include <stdio.h>
void swap(int *a, int b)
{
int m, *n;
n=&m;
*n=*a;
*a=b;
b=*n;
}
int main()
{
int x=8,y=1;
swap(&x,y);
printf("%d#%d#",x,y);
}
2. When input: 123, what is the output of the following program_______________.
#include <stdio.h>
int f(char s[], int b)
{
int i=0, n=0;
while (s[i]!=’\0’) {
n=n*b+s[i]-'0';
i++;
}
return n;
}
int main()
{
char s[20];
int n;
悲剧的诞生
scanf("%s",s);
printf("%d", f(s,5));
}
3. 最新的歌When the following program’s input is
ing<Enter>
This is a long test string<Enter>
