Online assignment of C language program design in the 22nd spring of Western Polytechnic University

West University of Technology 22 In the spring 《C Language programming 》 Online homework

Total score of test paper :100? score :100
One 、 Single topic selection ( common 35 Two questions , common 70 branch )
1. When defining a structure variable , The amount of memory allocated to it by the system is （）.
A. The amount of memory required for the first member of the structure
B. The amount of memory required for the last member of the structure
C. The largest amount of memory in a member
D. The total amount of memory required by each member
2. In the macro definition #definePI3.14159 in , Use the macro name PI Replace a （）.
A. Constant
B. character string
C. Double precision number
D. Single precision number
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A. Infinite loop
B. The number of cycles is variable
C.4 Time
D.3 Time
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A.D
B.C
C.B
D.A
5. Illegal constants are ：（).
A.\483
B.’\2’
C.’’
D.””
6. The following incorrect definition statement is （）.
A.inty[5]={0,1,3,5,7,9};
B.doublex[5]={2.0,4.0,6.0,8.0,10.0};
C.charc2[]={’\x10’,’\xa’,’\x8’};
D.charc1[]={’1’,’2’,’3’,’4’,’5’};
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7.（） yes C The legal data type provided by the language describes the keyword .
A.signed
B.integer
C.Float
D.Char
8. One C The program always starts from （） Function starts to run .
A.main
B.int
C.include
D.for
9. It is legal C The language long constant is （）.
A.(long)58762
B.5876
C.0L
D.2.0E10
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A. sentence voidprt_char(); There is a mistake , It is a function call statement , Out-of-service void explain
B. Variable names cannot be capitalized
C. There is a contradiction between the function description and the function call statement
D. Function names cannot be underlined
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A.150
B.15
C.100
D.10
12. stay C In language , When defining array elements , The following statement about the array subscript data type is wrong ().
A. Integer expression
B. Integer constant or integer expression
C. integer constants
D. Any type of expression
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A.D
B.C
C.B
D.A
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A.D
B.C
C.B
D.A
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A.D
B.C
C.B
D.A
16.C Language policy , The type of the return value of the function is determined by () Decisive .
A. The calling function type when this function is called
B. This function is called by the system temporarily
C. The function type specified when defining the function
D.return Expression type in statement
17. complete C After editing the source file 、 To generate the execution file ,C The steps that a language processing system must perform are （）.
A. Connect 、 function
B. Connect 、 compile
C. function
D. compile 、 Connect
18. The lowest priority of the following operators is （）.
A.||
B.|
C.&&
D.&
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A.26
B.25
C.24
D.23
20. When C When the source program of the language cannot be written on one line , Sure ().
A. Continue lines with commas
B. use \ Line continuation
C. Continue lines with spaces
D. Continue with a semicolon
21. There are program segments ：chars[]=”china”;charp;p=s; The following statement is correct （）.
A. Array s Contents and pointer variables in p The contents in the are equal
B.s Array length and p The length of the string pointed to is equal
C.s and p Exactly the same
D.p And s[0] equal
22. If you call a function intfun(), And there is no return sentence , The correct statement is （）.
A. Returns an indeterminate value
B. This function returns several system default values
C. The function does not return a value
D. It can return a function value desired by the user
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A.int
B.int
C.(int)
D.(*int)
24. Function call statements ：fseek(fp,-20L,2) The meaning is （）.
A. Move the file position pointer to a distance from the file header 20 Bytes
B. Move the file location pointer to the current location 20 Bytes
C. Move the file position pointer back from the end of the file 20 Bytes
D. Move the file position pointer backward from the current position 20 Bytes
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25. if a=2,b=3, be a|b The value of is （）.
A.3
B.2
C.1
D.0
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A.4
B.3
C.2
D.1
27. If so stated ：inta[3][4]={0}; Then the correct statement below is （）.
A. This statement is incorrect
B. Array a Each element in can get the initial value 0
C. Array a The initial value can be obtained for each element in , But its value is not necessarily 0
D. Only the elements a[0][0] The initial value can be obtained 0
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A.D
B.C
C.B
D.A
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A.00011011
B.00011011
C.00011000
30.C The correct way to write the file name in the source program is （）.
A.c:user\text.txt
B.c:\user\text.txt
C.c:\user\text.txt
D.c:\user\text.txt
31. Pointer to variable , The meaning of this variable is （）.
A. Address
B. name
C. value
D. A sign
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A. A loop is an infinite loop
B. The circular body sentence is executed once
C. Circular body sentences are not executed once
D. A loop is not an infinite loop
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A. There are grammatical mistakes
B.6
C.11
D.10
34. form C The language program is ().
A. The process
B. Subroutines
C. function
D. Main program and subroutine
35. Constitute a C The key to the procedure is （）
A. Several main functions and several non main functions
B. Several main functions and at most one non main function
C. One main function and several non main functions
D. One main function and at most one non main function
Two 、 Multiple choice ( common 5 Two questions , common 30 branch )
36. A computer program should include () The content of .
A. A description of society
B. A description of the data
C. A description of the operation （ Algorithm ）
D. Description of the enterprise
37. The three basic program structures are ().
A. Sequential structure
B. Selection structure
C. Tree structure
D. Loop structure
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38. The characteristics of computer algorithms include （）.
A. deterministic
B. Zero or more inputs
C. Fineness
D. effectiveness
E. There is one or more outputs
39. Computer algorithms can be divided into () Two categories .
A. Non numerical algorithm
B. Structural operations
C. Numerical algorithm
D. Formal operations
40. Function bodies generally include () Two parts .
A. operation
B. perform
C. form
D. Statement