array_push ($p_x, $zuo+$i*$jiange);

array_push ($p_y, $shang+round(($img_gao-$shang-$xia)*(1-$shuju[$i]/$zuidashujuzhi)));

}

//纵轴刻度

imageline ( $image, $zuo, $shang, $zuo+6, $shang, $zuobiao_yanse);

imagestring ( $image, 1, $zuo/4, $shang,$zuidashujuzhi, $zuobiao_yanse);

imageline ( $image, $zuo, $shang+($img_gao-$shang-$xia)*1/4, $zuo+6, $shang+($img_gao-$shang-$xia)*1/4, $zuobiao_yanse);

imagestring ( $image, 1, $zuo/4, $shang+($img_gao-$shang-$xia)*1/4,$zuidashujuzhi*3/4, $zuobiao_yanse);

imageline ( $image, $zuo, $shang+($img_gao-$shang-$xia)*2/4, $zuo+6, $shang+($img_gao-$shang-$xia)*2/4, $zuobiao_yanse);

imagestring ( $image, 1, $zuo/4, $shang+($img_gao-$shang-$xia)*2/4,$zuidashujuzhi*2/4, $zuobiao_yanse);

imageline ( $image, $zuo, $shang+($img_gao-$shang-$xia)*3/4, $zuo+6, $shang+($img_gao-$shang-$xia)*3/4, $zuobiao_yanse);

imagestring ( $image, 1, $zuo/4, $shang+($img_gao-$shang-$xia)*3/4,$zuidashujuzhi*1/4, $zuobiao_yanse);

//横轴刻度

for($i=0;$iimageline ( $image, $zuo+$i*$jiange, $img_gao-$xia, $zuo+$i*$jiange, $img_gao-$xia-6, $zuobiao_yanse);

imagestring ( $image, 1, $zuo+$i*$jiange-$jiange/4, $shang+($img_gao-$shang-$xia)+2,$y_name[$i], $zuobiao_yanse);

}

//折线

$shuju_yanse_int=0;

for($i=0;$iif($i+1<>count($shuju)){

imageline ( $image, $p_x[$i], $p_y[$i], $p_x[$i+1], $p_y[$i+1], $xian_yanse);

imagefilledrectangle($image, $p_x[$i]-1, $p_y[$i]-1, $p_x[$i]+1, $p_y[$i]+1, $xian_yanse);

}

}

//上一个循环没有画出最后一个点效果，这里还要追加

imagefilledrectangle($image, $p_x[count($shuju)-1]-1, $p_y[count($shuju)-1]-1, $p_x[count($shuju)-1]+1, $p_y[count($shuju)-1]+1, $xian_yanse);

//标注数据值

for($i=0;$iimagestring ( $image, 3, $p_x[$i]+4, $p_y[$i]-12,$shuju[$i], $zuobiao_yanse);

}

//设定文件头

header('Content-type: image/png');

//输出图像

imagepng($image);

//释放资源

imagedestroy($image);

?>