<?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?
public class T1 {
private int a=6;
public void ha(){
System.out.println(this.a);
}
}
public class T2 extends T1{
int a=7;
}
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