C语言函数大全(b开头)函数名: bar功能: 画一个二维条形图用法: void far bar(int left, int top, int right, int bottom);程序例:#include#include#include#includeint main(void)/* request auto detection */int gdriver = DETECT, gmode, errorcode;int midx, midy, i;/* initialize graphics and local variables */initgraph(&gdriver, &gmode, );/* read result of initialization */errorcode = graphresult();if (errorcode != grOk) /* an error occurred */printf(Graphics error: %sn, grapherrormsg(err
