程序51】题目:学习使用按位与&。1.程序分析:0&0=0;0&1=0;1&0=0;1&1=12.程序源代码:#includestdio.hmain(){inta,b;a=077;b=a&3;printf(\40:Thea&b(decimal)is%d\n,b);b&=7;printf(\40:Thea&b(decimal)is%d\n,b);}======================【程序52】题目:学习使用按位或|。1.程序分析:0|0=0;0|1=1;1|0=1;1|1=12.程序源代码:#includestdio.hmain(){inta,b;a=077;b=a|3;printf(\40:Thea&b(decimal)is%d\n,b);b|=7;printf(\40:Thea&b(decimal)is%d\n,b);}======================【程序53】题目:学习使用按位异或^。1.程序分析:0^0=0;0^1=1;1^0=1;1^1=02.程序源代码:#includestdio.hmain(){inta,b;a=077;b=a^3;printf(\40:Thea&b(decimal)is%d\n,b);b^=7;printf(\40:Thea&b(decimal)is%d\n,b);}======================【程序54】题目:取一个整数a从右端开始的4~7位。程序分析:可以这样考虑:(1)先使a右移4位。(2)设置一个低4位全为1,其余全为0的数。可用~(~04)(3)将上面二者进行&运算。2.程序源代码:main(){unsigneda,b,c,d;scanf(%o,&a);b=a4;c=~(~04);d=b&c;printf(%o\n%o\n,a,d);}======================【程序55】题目:学习使用按位取反~。1.程序分析:~0=1;~1=0;2.程序源代码:#includestdio.hmain(){inta,b;a=234;b=~a;printf(\40:Thea's1complement(decimal)is%d\n,b);a=~a;printf(\40:Thea's1complement(hexidecimal)is%x\n,a);}======================【程序56】题目:画图,学用circle画圆形。1.程序分析:2.程序源代码:/*circle*/#includegraphics.hmain(){intdriver,mode,i;floatj=1,k=1;driver=VGA;mode=VGAHI;initgraph(&driver,&mode,);setbkcolor(YELLOW);for(i=0;i=25;i++){setcolor(8);circle(310,250,k);k=k+j;j=j+0.3;}}======================【程序57】题目:画图,学用line画直线。1.程序分析:2.程序源代码:#includegraphics.hmain(){intdriver,mode,i;floatx0,y0,y1,x1;floatj=12,k;driver=VGA;mode=VGAHI;initgraph(&driver,&mode,);setbkcolor(GREEN);x0=263;y0=263;y1=275;x1=275;for(i=0;i=18;i++){setcolor(5);line(x0,y0,x0,y1);x0=x0-5;y0=y0-5;x1=x1+5;y1=y1+5;j=j+10;}x0=263;y1=275;y0=263;for(i=0;i=20;i++){setcolor(5);line(x0,y0,x0,y1);x0=x0+5;y0=y0+5;y1=y1-5;}}======================【程序58】题目:画图,学用rectangle画方形。1.程序分析:利用for循环控制100-999个数,每个数分解出个位,十位,百位。2.程序源代码:#includegraphics.hmain(){intx0,y0,y1,x1,driver,mode,i;driver=VGA;mode=VGAHI;initgraph(&driver,&mode,);setbkcolor(YELLOW);x0=263;y0=263;y1=275;x1=275;for(i=0;i=18;i++){setcolor(1);rectangle(x0,y0,x1,y1);x0=x0-5;y0=y0-5;x1=x1+5;y1=y1+5;}settextstyle(DEFAULT_FONT,HORIZ_DIR,2);outtextxy(150,40,Howbeautifulitis!);line(130,60,480,60);setcolor(2);circle(269,269,137);}======================【程序59】题目:画图,综合例子。1.程序分析:2.程序源代码:#definePAI3.1415926#defineB0.809#includegraphics.h#includemath.hmain(){inti,j,k,x0,y0,x,y,driver,mode;floata;driver=CGA;mode=CGAC0;initgraph(&driver,&mode,);setcolor(3);setbkcolor(GREEN);x0=150;y0=100;circle(x0,y0,10);circle(x0,y0,20);circle(x0,y0,50);for(i=0;i16;i++){a=(2*PAI/16)*i;x=ceil(x0+48*cos(a));y=ceil(y0+48*sin(a)*B);setcolor(2);line(x0,y0,x,y);}setcolor(3);circle(x0,y0,60);/*Make0timenormalsizeletters*/settextstyle(DEFAULT_FONT,HORIZ_DIR,0);outtextxy(10,170,pressakey);getch();setfillstyle(HATCH_FILL,YELLOW);floodfill(202,100,WHITE);getch();for(k=0;k=500;k++){setcolor(3);for(i=0;i=16;i++){a=(2*PAI/16)*i+(2*PAI/180)*k;x=ceil(x0+48*cos(a));y=ceil(y0+48+sin(a)*B);setcolor(2);line(x0,y0,x,y);}for(j=1;j=50;j++){a=(2*PAI/16)*i+(2*PAI/180)*k-1;x=ceil(x0+48*cos(a));y=ceil(y0+48*sin(a)*B);line(x0,y0,x,y);}}restorecrtmode();}======================【程序60】题目:画图,综合例子。1.程序分析:2.程序源代码:#includegraphics.h#defineLEFT0#defineTOP0#defineRIGHT639#defineBOTTOM479#defineLINES400#defineMAXCOLOR15main(){intdriver,mode,error;intx1,y1;intx2,y2;intdx1,dy1,dx2,dy2,i=1;intcount=0;intcolor=0;driver=VGA;mode=VGAHI;initgraph(&driver,&mode,);x1=x2=y1=y2=10;dx1=dy1=2;dx2=dy2=3;while(!kbhit()){line(x1,y1,x2,y2);x1+=dx1;y1+=dy1;x2+=dx2;y2+dy2;if(x1=LEFT||x1=RIGHT)dx1=-dx1;if(y1=TOP||y1=BOTTOM)dy1=-dy1;if(x2=LEFT||x2=RIGHT)dx2=-dx2;if(y2=TOP||y2=BOTTOM)dy2=-dy2;if(++countLINES){setcolor(color);color=(color=MAXCOLOR)?0:++color;}}closegraph();}【程序61】题目:打印出杨辉三角形(要求打印出10行如下图)1.程序分析:111121133114641151010512.程序源代码:main(){inti,j;inta[10][10];printf(\n);for(i=0;i10;i++){a[i][0]=1;a[i][i]=1;}for(i=2;i10;i++)for(j=1;ja[i][j]=a[i-1][j-1]+a[i-1][j];for(i=0;i10;i++){for(j=0;j=i;j++)printf(],a[i][j]);printf(\n);}}======================【程序62】题目:学习putpixel画点。1.程序分析:2.程序源代码:#includestdio.h#includegraphics.hmain(){inti,j,driver=VGA,mode=VGAHI;initgraph(&driver,&mode,);setbkcolor(YELLOW);for(i=50;i=230;i+=20)for(j=50;j=230;j++)putpixel(i,j,1);for(j=50;j=230;j+=20)for(i=50;i=230;i++)putpixel(i,j,1);}======================【程序63】题目:画椭圆ellipse1.程序分析:2.程序源代码:#includestdio.h#includegraphics.h#includeconio.hmain(){intx=360,y=160,driver=VGA,mode=VGAHI;intnum=20,i;inttop,bottom;initgraph(&driver,&mode,);top=y-30;bottom=y-30;for(i=0;i{ellipse(250,250,0,360,top,bottom);top-=5;bottom+=5;}getch();}======================【程序64】题目:利用ellipseandrectangle画图。1.程序分析:2.程序源代码:#includestdio.h#includegraphics.h#includeconio.hmain(){intdriver=VGA,mode=VGAHI;inti,num=15,top=50;intleft=20,right=50;initgraph(&driver,&mode,);for(i=0;i{ellipse(250,250,0,360,right,left);ellipse(250,250,0,360,20,top);rectangle(20-2*i,20-2*i,10*(i+2),10*(i+2));right+=5;left+=5;top+=10;}getch();}======================【程序65】题目:一个最优美的图案。1.程序分析:2.程序源代码:#includegraphics.h#includemath.h#includedos.h#includeconio.h#includestdlib.h#includestdio.h#includestdarg.h#def