10103班課堂練習(xí)2

1、10103班課堂練習(xí)1.閱讀下列程序，運(yùn)行結(jié)果為_ #include<stdio.h> void main() int k=5,n=0; do switch(k) case 1: case 3:n+=1;k-;break; default:n=0;k-; case 2: case 4:n+=2;k-;break; printf("%3d",n); while(k>0&&n<5);printf("n");2.閱讀下列程序，運(yùn)行結(jié)果為_ #include<stdio.h> void main() int i

2、,j,sum=0; for(i=2;i>=-1;i-) for(j=-1;j<=i;j+) sum+=i*j; printf("%d,",sum); 3. 閱讀下列程序，運(yùn)行結(jié)果為_ #include<stdio.h> int a=1; int fun(int c) static int a=2; c+; return(a+)+c; void main() int i,k=0; for(i=0;i<2;i+) int a=3; k+=fun(a); printf("%4d",k); k+=a; printf("%4

3、d",k);4.閱讀下列程序，運(yùn)行結(jié)果為_#include <stdio.h>int x=10;void abc( int a) static int x=5; x+=a+; printf(“x=%d,”,x);void main( ) int b=10; abc(b); x+=b+; abc(b); printf(“x=%dn”,x);5. 閱讀下列程序，運(yùn)行結(jié)果為_int hextoten(char a5) int i,num; char ch; num=0; for(i=0;i<5;i+) ch=ai; if(ch=H)|(ch='0') br

4、eak;if(ch>='0')&&(ch<='9') ch=ch-'0'else ch=ch-'0'-7;num=num*16+ch;return(num);main() char strhex5="100" int numten,k; strupr(strhex); numten=hextoten(strhex); printf("NUM=%dn",numten); 6. 閱讀下列程序，運(yùn)行結(jié)果為_int a=5,b=7;main() int a=4,b=5,c

5、; c=plus(a,b); printf(“A+B=%dn”,c); getch();plus(int x,int y)int z; z=x+y; return(x);7. 閱讀下列程序，運(yùn)行結(jié)果為_#include stdio.hvoid num() extern int x,y; int a=15,b=10; x=a-b; y=a+b;int x,y;main() int a=7,b=5; x=a+b; y=a-b; num(); printf(“%d,%dn”,x,y);8. 閱讀下列程序，運(yùn)行結(jié)果為_swap(int x,inty) int t; t=x;x=y ;y=t; printf(