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记一次MongoDB性能问题 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
记一次MongoDB性能问题最近忙着把一个项目从MySQL迁移到MongoDB，在导入旧数据的过程中，遇到了些许波折，犯了不少错误，但同时也学到了不少知识，遂记录下来。公...最近忙着把一个项目从MySQL迁移到MongoDB，在导入旧数据的过...
When should the xlsm or xlsb formats be used?
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They're all similar in that they're essentially zip files containing the actual file components. You can see the contents just by replacing the extension with .zip and opening them up. The difference with xlsb seems to be that the components are not XML-based but are in ...
python pandas dataframe to dictionary
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mydict = dict(zip(df.id, df.value))
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Cleaner way to update nested structures
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Zippers
Huet's Zipper provides convenient traversal and 'mutation' of an immutable data structure. Scalaz provides Zippers for Stream (scalaz.Zipper), and Tree (scalaz.TreeLoc). It turns out that the structure of the zipper ...
Mismatch Detected for 'RuntimeLibrary'
...deas how to fix this?
To resolve your issues, you should download vs2010.zip if you want static C/C++ runtime linking (/MT or /MTd), or vs2010-dynamic.zip if you want dynamic C/C++ runtime linking (/MT or /MTd). Both fix the latent, silent failures produced by VCUpgrade.
vs2010.zip, vs2010-dyna...
数据存储组件 · App Inventor 2 中文网
...强大的文件相关的操作。是 文件管理器 的加强拓展。
.aix 拓展下载：
com.sunny.FileTools.aix
FileTools demo程序下载：
FileTools.aia
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how to use adb command to push a file on device without sd card
...push filename.extension /sdcard/0/
example: adb push UPDATE-SuperSU-v2.01.zip /sdcard/0/
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一个转型程序员的销售观 - 杂谈 - 清泛网 - 专注C/C++及内核技术
...较聪明的，在初次跟客户面谈的时候，可能大多数客户会把销售的话当五成听，对销售说的每一句话都抱着怀疑的态度。但当他验证了你所说的每一句话后， 客户后面可能会选择相信你说的每一句话，这对于后期项目的沟通和...
搭建高可用mongodb集群（四）—— 分片 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...个路由选择器，mongos自己就是一个请求分发中心，它负责把对应的数据请求请求转发到对应的shard服务器上。在生产环境通常有多mongos作为请求的入口，防止其中一个挂掉所有的mongodb请求都没有办法操作。
config server，顾名思义...
How to download a Nuget package without nuget.exe or Visual Studio extension?
...As I understand I will be able to extract the .dll files from it (with 7-zip) to use as normal.
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