Write the Code. Change the World.

7月 27

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前端

想要在小程序中使用区域聚合很不好搞啊。单纯的聚合，腾讯地图小程序就已经支持。可是区域聚合貌似只有高德有。

聚合

高德区划聚合
https://developer.amap.com/demo/amap-ui/demos/amap-ui-districtcluster/top-adcodes

https://developer.amap.com/api/amap-ui/reference-amap-ui/geo/district-cluster

微信聚合
https://developers.weixin.qq.com/miniprogram/dev/api/media/map/MapContext.initMarkerCluster.html

https://developers.weixin.qq.com/miniprogram/dev/component/map.html

高德难言
https://developer.amap.com/faq/other-interface/amap-applets/create-project/66485

既然不支持，又想搞怎么办呢。自己写算法，实现 market 的调整。这个时候，大家就要齐心。放大到一定比例展示省级别，再放大到一定比例显示市级别，再放到一定比列显示县级别，再放到一定比例显示镇级别。就以镇为最小单位，把每个镇里相关的数据放在一个数组里，镇的放在县里依次到省，全国。这样似乎就失去了腾讯地图聚合的初衷了。 地图有 initMarkerCluster 方法和 markerClusterCreate 时间，不用可惜啊。

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7月 19

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php

As you may know, this year we updated the Laravel release cycle to include one major release per year. Previously, we released two major versions per year.

These release changes would typically indicate that a Laravel 9 release is due in September of this year. However, as you may know, Laravel uses a variety of community-driven packages as well as nine Symfony components for a number of features within the framework. Symfony 6.0 is due for release in November. For that reason, we are choosing to delay the Laravel 9.0 release until January 2022.

By delaying the release, we can upgrade our underlying Symfony components to Symfony 6.0 without being forced to wait until September 2022 to perform this upgrade. In addition, this better positions us for future releases as our yearly releases will always take place two months after Symfony’s releases. This means that the upcoming Laravel release schedule will look as follows:

Laravel 9.0: January 2022
Laravel 10.0: January 2023
Laravel 11.0: January 2024
We are continuing to deliver exciting new improvements to the Laravel 8.x release series. In fact, we have been able to ship a variety of amazing new features without needing a major release, including parallel testing, model broadcasting improvements, and more. We look forward to shipping even more wonderful improvements to you soon!

原文

https://blog.laravel.com/laravel-9-release-date

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7月 16

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php,工具

步骤

  1. 新建空目录。 zz.com
  2. 进 zz.com。 新建 composer.json 文件。并填充内容。
{
  "require": {
    "jonnyw/php-phantomjs": "4.*"
  }
}
  1. 执行 composer.update 。
  2. 建立 git 和 .gitignore 忽略文件
git init
.gitignore 中填充 /vendor
git add .
git commit -m '新建 composer.json 文件，配置安装 jonnyw/php-phantomjs'
  1. 新建路由以及配置自动加载。

参考

https://learnku.com/laravel/t/3590/php-crawls-the-page-that-needs-to-run-js-run-js-grabing-web-page-with-php-while

https://blog.junphp.com/details/391.jsp

https://blog.csdn.net/luyaran/article/details/53836486

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7月 16

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前端

随着苹果 8 以后的手机等出现，顶部，底部自适应问题是手机应用（app,web,小程序）要解决的问题。对于网页和小程序可以使用 env(safe-area-inset-bottom) 等解决。

env()和constant()，是IOS11新增特性，Webkit的css函数，用于设定安全区域与边界的距离，有4个预定义变量：

  • safe-area-inset-left：安全区域距离左边边界的距离
  • safe-area-inset-right：安全区域距离右边边界的距离
  • safe-area-inset-top：安全区域距离顶部边界的距离
  • safe-area-inset-bottom ：安全距离底部边界的距离

而env()和constant()函数有个必要的使用前提，H5网页设置viewport-fit=cover的时候才生效，小程序里的viewport-fit默认是cover。

<meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">

适配底部代码：

height: calc(96rpx+ constant(safe-area-inset-bottom));//兼容 IOS<11.2

height: calc(96rpx + env(safe-area-inset-bottom));//兼容 IOS>11.2

padding-bottom: constant(safe-area-inset-bottom);//兼容 IOS<11.2

padding-bottom: env(safe-area-inset-bottom);//兼容 IOS>11.2


// 先constant再env

文章来源第二个有说到兼容性问题。

文章来源

https://www.cnblogs.com/djjlovedjj/p/13983852.html

https://www.cnblogs.com/djjlovedjj/p/14686684.html

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7月 09

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flutter
Text(
    '给我一个理由忘记',
    overflow: TextOverflow.ellipsis,
    maxLines: 2,
    style: TextStyle(
        fontSize: 13.0
    ),
)

在某些场景下无法换行，请用 Expanded

Expanded (
    child: Text(
        '给我一个理由忘记',
        overflow: TextOverflow.ellipsis,
        maxLines: 2,
        style: TextStyle(
            fontSize: 13.0
        ),
    )
)

也可以套 Container ，设置宽度来限制文本的宽度。

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7月 09

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php

准备

https://github.com/FriendsOfPHP/Goutte

https://github.com/guzzle/guzzle

https://guzzle-cn.readthedocs.io/zh_CN/latest/request-options.html

安装

composer require fabpot/goutte

composer require guzzlehttp/guzzle

试试

先看看 goutte

use Goutte\Client;

$client = new Client();
$crawler = $client->request('GET', 'https://www.yuepaibao.com/moments');
$crawler->filter('.content span')->each(function ($node) {
print $node->text()."\n";
});

**再看看 GuzzleHttp **

use GuzzleHttp\Client as GoutteClient;
use GuzzleHttp\Psr7\Request as GuzzleRequest;

$url = 'https://www.hao123.com';
$request = new GuzzleRequest('GET', $url);
$client = new GoutteClient();
$response = $client->send($request, ['timeout' => 5]);
$content = $response->getBody()->getContents();
echo $content;

特殊

https://learnku.com/laravel/t/3590/php-crawls-the-page-that-needs-to-run-js-run-js-grabing-web-page-with-php-while

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6月 18

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诗和远方

领离药房

https://github.com/vjiedan/shwinking.git

万敬
https://github.com/vjiedan/shwinking.git

高锶
git@gitlab.com:vinish/gaosi.com.git

ssl 证书
https://github.com/prispace/sslcer.git

溯源码
https://github.com/vjiedan/suyuanma.git

约拍宝-v2服务端
https://gitlab.com/vinish/yuepaibao.git

约拍宝-v1服务端
https://gitlab.com/yuepaibao/www.yuepaibao.com.git

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6月 03

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php

mysql 事务里，没有使用 commit。导致该资源被长期占用，其他事务在抢占该资源时，因上一个事务的锁而导致抢占失败。

处理

方法一
– 查看事物表，找出被锁线程的id：SELECT * FROM information_schema.INNODB_TRX;
– 根据 id（trx_mysql_thread_id），kill掉被锁住的线程：kill 121212

方法二
– 执行MySQL命令：SHOW FULL PROCESSLIST; 找到被锁住的线程ID
– 根据id，kill掉被锁住的线程：kill 4

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