17 Chuncheon University Online Homework Reference Answers
Sichuan University 17th spring "C language programming 0008" 17th spring online homework 2
One, multiple choice
1、C
2、D
3、C
4、B
5、D
One, multiple choice
1. Multiple-choice questions (25 questions in total, 100 points in total.) V 1. In the following program segment, the number of times the while loop is executed is (). int k=0; while(k=1) k++;
A. Execute once
B. not once
C. Execute infinite times
D. The prompt has grammatical errors
Correct Answer: C
2. Let a be an integer variable, which of the following expressions is incorrect ( ).
A. a=a+1
B. a++
C. (++a)+1
D. a+(1++)
Correct answer: D
3. If there is an algebraic expression, the incorrect C language expression is ( )
A. a/c/d*b*2
B. 2*a*b/c/d
C. 2*a*b/c*d
D. a*b/c/d*2
Correct Answer: C
4. main( ) { int a=666, b=888; Printf(“%dn”, a,b); } The output result after the program runs is ( ).
A. Error messages
B. 666
C. 888
D. 666，888
Correct Answer: B
5. Which of the following options is not a statement in C language ()
A. Empty statement
B. Function call statement
C. Expression Statements
D. Input and output statements
Correct answer: D
6. Which of the following statements is incorrect ()
A. A C source program can consist of one or more functions
B. The C source program that generates the executable program must contain a main function
C. The basic unit of C program is the function
D. One statement in a C program occupies one line
Correct answer: D
7. Among the C language constants listed below, the wrong one is ().
A. OxFF