题目内容

n is an int variable. Which statement do not change the value of variable n? ( )

A. n=getchar();
B. n>0?n++:n--;
C. printf("%d", n+2);
D. n += 2;

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#include main() { int i=3; switch ( ) { case 1: i=1; case 2: i=2; case 3: i=3; default : i=4; } printf("i=%d\n",i); }

A. (=36)

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Three basic structures of C language program are ( ).

A. Sequential structure, selection structure, loop structure
B. Recursive structure, selection structure, loop structure
C. Nested structure, recursive structure, sequential structure
D. Nested structure, selection structure, loop structure

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The default storage class for formal parameters is ( ).

A. auto
B. register
C. static
D. extern

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Which one is illegal identifier? ( )

A. s_name
B. _e
C. printf
D. 3DS

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n is an int variable. Which statement do not change the value of variable n? ( )

A. n=getchar(); B. n>0?n++:n--; C. printf("%d", n+2); D. n += 2;

#include main() { int i=3; switch ( ) { case 1: i*=1; case 2: i*=2; case 3: i*=3; default : i*=4; } printf("i=%d\n",i); }

Three basic structures of C language program are ( ).

The default storage class for formal parameters is ( ).

Which one is illegal identifier? ( )

A. n=getchar();
B. n>0?n++:n--;
C. printf("%d", n+2);
D. n += 2;

#include main() { int i=3; switch ( ) { case 1: i=1; case 2: i=2; case 3: i=3; default : i=4; } printf("i=%d\n",i); }