toclly
toclly
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拿什么拯救你,创建网络失败? 试了一晚上,别提什么服务启动,什么杀毒要关,所有方法都试过,不管用。 再看官方的FAQ,表示无解,那不一般怎么办?
C语言画圆问题。怎么跳过画图界面直接出来了? 这里是用三角函数画圆的。代码如下: #include <stdio.h> #include <conio.h> #include <graphics.h> #define WIDTH 250 #define HEIGHT 250 double page=180.00; double pi=3.14; int x; int y; int a, b, r, color, metric; void putPoints(int x, int y, int color) { int xasp, yasp; float aspectratio; getaspectratio(&xasp, &yasp); aspectratio=xasp/yasp; putpixel(x+WIDTH, y*aspectratio+HEIGHT,color); putpixel(y+WIDTH, x*aspectratio+HEIGHT,color); putpixel(-y+WIDTH, x*aspectratio+HEIGHT,color); putpixel(-x+WIDTH, y*aspectratio+HEIGHT,color); putpixel(y+WIDTH, -x*aspectratio+HEIGHT,color); putpixel(x+WIDTH, -y*aspectratio+HEIGHT,color); putpixel(-x+WIDTH, -y*aspectratio+HEIGHT,color); putpixel(-y+WIDTH, -x*aspectratio+HEIGHT,color); putpixel(-y+WIDTH, -x*aspectratio+HEIGHT,color); } void funCircle(int r, int color) { for(metric=0;metric<=90;metric++) { a=(int)(r*sin((double)metric/page*pi)+0.5); b=(int)(r*cos((double)metric/page*pi)+0.5); putPoints(a, b, color); } } void main() { int graphdriver, graphmode, errorcode; printf("Please input R!\n\tR: "); scanf("%d", &r); printf("Please input COLOR!\n\tCOLOR: "); scanf("%d", &color); graphdriver=DETECT; graphmode=0; initgraph(&graphdriver, &graphmode, "D:\\WINYES\\TC20H\\BGI"); errorcode = graphresult(); if (errorcode != grOk) { printf("Graphics error:%s\n", grapherrormsg(errorcode)); printf("Press any key to halt:"); getch(); exit(1); } cleardevice(); funCircle(r, color); getch(); closegraph(); } ------------------------------------------------------ 哪位高手知道问题在哪?感谢!
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