2015.3.27课堂作业第二章第9题

# include <stdio.h>int main(){float X,Y,Z;printf("输入A坐标：");scanf("(%f,%f)",&X,&Y);Z=(X-2)*(X-2)+(Y-2)*(Y-2);if(Z<1)printf("A点在圆内\n");else if(Z==1)printf("A点在圆周上\n");else printf("A点在圆外\n");                                                            return 0;}