用PHP的GD库画五星红旗来玩玩

 1 header("Content-Type:image/jpeg");
 $img=imagecreatetruecolor(999,667);
 $color=imagecolorallocate($img,197,0,0);
 $star_col=imagecolorallocate($img,255,242,0);
 imagefill($img,0,0,$color);
 //大星星
 $big_star=[166,68,189,136,260,136,203,179,227,247,166,206,109,246,129,179,72,136,143,136,166,68];
 //二星星
 $smal_star1=[345,38,343,60,364,69,343,75,340,97,326,79,305,83,318,65,308,47,329,54,435,38];
 $smal_star2=[385,105,402,121,422,111,412,133,426,148,405,146,392,166,389,143,367,138,388,128,385,105];
 $smal_star3=[398,201,406,223,428,223,412,237,418,258,399,247,379,261,387,239,367,224,391,224,398,201];
 $smal_star4=[343,270,344,292,367,301,343,308,342,329,328,312,305,318,318,299,308,280,328,287,343,271];

 imagefilledpolygon($img,$big_star,10,$star_col);
 imagefilledpolygon($img,$smal_star1,10,$star_col);
 imagefilledpolygon($img,$smal_star2,10,$star_col);
 imagefilledpolygon($img,$smal_star3,10,$star_col);
 imagefilledpolygon($img,$smal_star4,10,$star_col);

 imagepng($img);
 imagedestroy($img);