文章整合

使用 BlocConsumer 同时构建响应式组件和监听状态

前言在上一篇Flutter 入门与实战（八十九）：使用 BlocListener 处理状态变化中，我们利用了 BlocListener 监听状态变化并做一些相应的处理，同时使用了 BlocBuilder 构建了响应式界面。回顾代码，我们会发现存在冗余的部分，我们需要将 BlocBuilder 作...
2022-07-07 21:34【岛上码农@公众号同名】
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使用 CustomPaint 绘制基本图形

上一篇初识 Flutter 的绘图组件 — CustomPaint 我们介绍了 CustomPaint 的基本概念和使用，可以看到 CustomPaint 其实和前端的 Canvas 基本上是一样的，实际上前端 Canvas 支持的绘制方法 CustomPaint 都支持，毕竟 Custom...
2022-07-07 21:34【岛上码农@公众号同名】
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反爬通杀神器

反爬通杀神器今天详细看了下「亮网络解锁器」这个产品，也实测了下，很屌，确实有用，分享给大家 fdfb 4e42 9084 7c8cc4d5efa0.jpg 通过本文连接跳转购买，首冲100美元送100美元使用方式先看效果，如请求某壁纸网，直接请求会出现如下 11af 42...
2022-07-07 21:34【Boris】
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海外代理推荐

海外代理推荐调研了一圈海外代理，发现这家代理质量又好又便宜，推荐给大家通过本文连接跳转购买，首冲100美元送100美元丰富的代理种类 e770 4953 b054 cb2106069b28.jpg 大多数采集需求，用数据中心的代理即可，量大且便宜。对代理要求高的可以用动态住宅代理...
2022-07-07 21:34【Boris】
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SAR影像质量评估

SAR影像辐射质量评价指标该程序基于SAR成像机理与数字图像处理原理，实现了两种评价SAR影像辐射质量的计算指标—— SAR影像辐射分辨率和 SAR影像等效视数。 1. SAR影像辐射分辨率辐射分辨率描述每个像素点的辐射质量，亦即区分目标后向散射系数的能力。是衡量SAR图像灰度级分辨能力的...
2022-07-07 21:34【CaiShengyang】
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The strongest installation of the twin tower model, Google is playing "antique" again?

The twin tower model has proved to be a very effective modeling method in search and question and answer tasks , The theory and business are quite ma...
2022-07-07 21:55【Zhiyuan community】
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Reinforcement learning - learning notes 9 | multi step TD target

This note still belongs to TD Category of algorithm .Multi Step TD Target It's right TD Algorithm improvement . 9. Multi Step TD Target 9.1 Review ...
2022-07-07 21:55【bbsmax】
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[open source] Net ORM accessing Firebird database

Preface Firebird Is a cross platform relational database system , At present, it can run in Windows、linux And all kinds of Unix On the operati...
2022-07-07 21:55【bbsmax】
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The difference between NPM uninstall and RM direct deletion

Conclusion ： 1. npm uninstall It will back up the package itself node modules,rm f Will delete the entire directory 2. npm uninstall The dependent ...
2022-07-07 21:55【bbsmax】
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It's worth seeing. Interview sites and interview skills

origin With Android The development industry is gradually saturated , Yes Android The interview requirements of developers are becoming higher and...
2022-07-07 21:57【InfoQ】
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Oracle advanced (VI) Oracle expdp/impdp details

One 、ORACLE Data pump ORCALE10G Provides a new import and export tool , Data pump . Oracle The official description of this is ： Oracle DataPump...
2022-07-07 21:57【InfoQ】
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Pre sale 179000, hengchi 5 can fire? Product power online depends on how it is sold

17.9 ten thousand , What car can you buy ？ Joint venture fuel SUV The entry-level model seems a little tight , In the self-made electric car , Byd's s...
2022-07-07 21:57【Nice nice car】
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Use json Stringify() to realize deep copy, be careful, there may be a huge hole

When there is a time type in the object The time type will be changed to string data const obj = { date: new Date } console.log typeof obj.date =...
2022-07-07 21:58【South wind comes late and knows late】
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Crawler (17) - Interview (2) | crawler interview question bank

1. What is a reptile Crawler is to crawl web data , As long as there is something on the web , Can be crawled down by reptiles , Such as the pictur...
2022-07-07 21:58【Old Ge】
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Implementation method of data platform landing

Let the data center really land is the top priority of realizing digital transformation . Enterprises do a good job in data management 、 After the pr...
2022-07-07 21:59【Big data analysis】
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null == undefined

analysis null and undefined The difference between , So as to understand why the two are equal https://img blog.csdnimg.cn/647066f95bd848188c92...
2022-07-07 21:59【Yolo416】
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Two kinds of updates lost and Solutions

Let's first create a user surface ,id Primary key CREATE TABLE user id int NOT NULL AUTO INCREMENT, money int DEFAULT NULL, version int DEFAULT NUL...
2022-07-07 21:59【fastjson_】
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[advanced MySQL] index details (I): index data page structure

InnoDB Data page structure of summary InnoDB Many different types of... Have been designed for different purposes page , For example, the page...
2022-07-07 21:59【Null pointer exception 1】
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Paint basic graphics with custompaint

Last one First time to know Flutter Drawing components for — CustomPaint We introduced CustomPaint The basic concept and use of , You can s...
2022-07-07 22:00【Ma Nong @ official account on the island with the same name】
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SAR image quality evaluation

SAR Image radiation quality evaluation index The program is based on SAR Imaging mechanism and digital image processing principle , Two kinds of ev...
2022-07-07 22:00【CaiShengyang】
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