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mysql blob大小配置介绍 - 爬虫/数据库 - 清泛IT社区，为创新赋能！
...种处理大数据对象的方法是把双刃剑，它有可能引发一些问题，如存储的二进制文件过大，会使数据库的性能下降。在数据库中存放体积较大的多媒体对象就是应用程序处理BLOB的典型例子。
mysql BLOB类型
MySQL中，BLOB是个类...
AVD Manager - Cannot Create Android Virtual Device
...e sure you don't have spaces (or other illegal characters like '+','=','/',etc) in the "AVD Name" field. Spaces broke it for me.
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Is there a performance difference between i++ and ++i in C++?
...i; }, never mind the actual tree structur (BSP, kd, Quadtree, Octree Grid, etc.). Such an iterator would need to maintain some state, e.g. parent node, child node, index and stuff like that. All in all, my stance is, even if only few examples exist, ...
– Sebastian Mach
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Which websocket library to use with Node.js? [closed]
...; TCP connections and provides data-sync, pub/sub and request/response
socketcluster WebSocket server cluster which makes use of all CPU cores on your machine. For example, if you were to use an xlarge Amazon EC2 instance with 32 cores, you would be able to handle almost 32 times the traffic on a si...
使用TokuMX配置Replica Set集群 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...
use admin
db.shutdownServer()
有任何关于MongoDB/TokuMX方面的问题，欢迎回复评论。集群 TokuMX MongoDB
融资千万美元后的足记要如何应对“爆款后遗症”？ - 资讯 - 清泛网 - 专注C...
...作的一支短片，短片把3741位读者回答“我去何方”这个问题发来的图片和字幕连接起来，展现生活的不同可能性。
这是足记从图片出发延伸开去的路径：单张图片——多长图片——短视频——电影
“我们已经有几十部电影有...
App Launcher 应用启动器扩展：用于启动其他应用程序的强大工具，支持独立...
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2.2 (2021-05-12)
解决了Android 10设备和小米设备的问题（见说明）添加属性：CanDrawOverlays、CanLaunchFromBackground、CurrentLanguage、IsXiaomi、Manufacturer、PermissionDelay、VersionName、VersionSDK添加方法：CheckBackgroundLaunchPermission、LaunchAppF...
Which is faster/best? SELECT * or SELECT column1, colum2, column3, etc
...re looking for is part of the index used to find the data the server will fetch the data right there, if you do a select * it will most likely have to do what is called a bookmark lookup, which requires an extra scan to find the rest of the underlying data, which you may not even need.
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ImageView 扩展：图片查看器扩展，支持缩放、双击缩放和动画缩放 · App In...
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手势识别
图片加载
常见问题
Q: 如何设置初始缩放比例？
Q: 支持哪些图片格式？
Q: 如何处理图片加载失败？
Q: 缩放操作会影响性能吗？
Q: 可以同时使...
How to detect user inactivity in Android
...n here as it is out of scope of the question
You can wake the lock to the cpu by using the device code below-
if(isScreenOff || getLastInteractionTime()> 120000 || !isInForeGrnd)
{
//...... means USER has been INACTIVE over a period of
// and you do your stuff like log the us...