1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 | <?php $user_id = 1; $token = $this ->getAccessToken(); $url = "https://api.weixin.qq.com/cgi-bin/qrcode/create?access_token=" . $token ; $ch1 = curl_init(); curl_setopt( $ch1 , CURLOPT_URL, $url ); curl_setopt( $ch1 , CURLOPT_POST, 1); curl_setopt( $ch1 , CURLOPT_RETURNTRANSFER, 1); curl_setopt( $ch1 , CURLOPT_SSL_VERIFYPEER, false); curl_setopt( $ch1 , CURLOPT_SSL_VERIFYHOST, false); //curl_setopt($ch1, CURLOPT_POSTFIELDS, '{"expire_seconds": 604800, "action_name": "QR_STR_SCENE", "action_info": {"scene": {"scene_str": "'.$user_id.'"}}}'); curl_setopt( $ch1 , CURLOPT_POSTFIELDS, '{"action_name": "QR_LIMIT_STR_SCENE", "action_info": {"scene": {"scene_str": "' . $user_id . '"}}}' ); $c = curl_exec( $ch1 ); $result = @json_decode( $c , true); $ticket = $result [ "ticket" ]; $qr_path = 'https://mp.weixin.qq.com/cgi-bin/showqrcode?ticket=' . $ticket ; $bigImgPath = "xxxxxxxxxxx.png" ; $bigImg = imagecreatefromstring( file_get_contents ( $bigImgPath )); $qCodeImg = imagecreatefromstring( file_get_contents ( $qr_path )); $save_width = 200; $save_height = 200; list( $qCodeWidth , $qCodeHight , $qCodeType ) = getimagesize ( $qr_path ); $new_image = imagecreatetruecolor( $save_width , $save_height ); $s = imagecopyresampled( $new_image , $qCodeImg , 0, 0, 0, 0, $save_width , $save_height , $qCodeWidth , $qCodeHight ); imagecopymerge( $bigImg , $new_image , 265, 370 , 0, 0, $save_width , $save_height , 100); $img_path = time().rand(100000,999999). '.jpg' ; imagejpeg( $bigImg , 'xxxxxxx/images/' . $img_path ); include $this ->template( 'code' ); |
月度归档: 2019年8月
JAVA 子类调用父类方法时,方法中的变量用谁的?
1 2 3 4 5 6 7 | public class T1 { private int a= 6 ; public void ha(){ System.out.println( this .a); } } |
1 2 3 | public class T2 extends T1{ int a= 7 ; } |
1 2 3 4 5 | public class Test { public static void main(String[] args) { new T2().ha(); } } |
输出结果为6
结论:子类调用父类方法时,方法中的变量用父类的
这个结果是很有意思的,我之前以为既然是子类调用父类的方法 那么应该是子类自动继承了父类 然后在自己类的内部使用自己的变量
没想到会使用父类内定义的变量值