1.a plane figure bounded by two radii and the included arc of a circle
2.a body of people who form part of society or economy;
the public sector
3.a particular aspect of life or activity;
he was helpless in an important sector of his life
4.the minimum track length that can be assigned to store information; unless otherwise specified a sector of data consists of 512 bytes
5.a portion of a military position
6.measuring instrument consisting of two graduated arms hinged at one end
函数名: sector 功 能: 画并填充椭圆扇区 用 法: void far sector(int x, int y, int stangle, int endangle); 程序例: #include <graphics.h> #include <stdlib.h> #include <stdio.h> #include <conio.h> int main(void) { /* request auto detection */ int gdriver = DETECT, gmode, errorcode; int midx, midy, i; int stangle = 45, endangle = 135; int xrad = 100, yrad = 50; /* initialize