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Flask-SQLAlchemy how to delete all rows in a single table
... Sep 17 '19 at 18:25
Ilja Everilä
36.6k55 gold badges7272 silver badges8686 bronze badges
answered May 15 '13 at 19:55
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整合phpcms v9和discuz X3.2实现同步登陆、退出免激活 - 更多技术 - 清泛网...
...分，如：/space.php?uid=%s 这里的 %s 代表uid）
应用接口文件名称：（选填，默认为uc.php）
标签单条显示模板：（选填，默认留空）
标签模板标记说明：（选填，默认留空）
是否开启同步登录：是（可选，开启同步...
Remove duplicated rows
I have read a CSV file into an R data.frame. Some of the rows have the same element in one of the columns. I would like to remove rows that are duplicates in that column. For example:
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C++STL容器使用经验总结 - C/C++ - 清泛网 - 专注C/C++及内核技术
...的输入请考虑使用istreambuf_iterator。
假如你想把一个文本文件的内容拷贝到一个string对象中，以下的代码看上去是一种合理的解决方案：
ifstream inputFile("interestingData.txt");
inputFIle.unsetf(ios::skipws);//istream_iterator使用operator>>函数来...
RESTful on Play! framework
...tUser method based on the Accept header?
– Timo Westkämper
Dec 7 '10 at 21:19
it is, but not entirely reliable. If pl...
How to split a comma-separated string?
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A comma delimited file (csv) might have a a comma in quotes, meaning it's not a delimiter. In this case Split will not work.
– Steven Trigg
Mar 8 '14 at 2:35
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HTML Submit-button: Different value / button-text?
...re suggestion in comments:
<input type="submit" name="add_tag" value="Lägg till tag" />
In your server side, you'll do something like:
if (request.getParameter("add_tag") != null)
tags.addTag( /*...*/ );
(Since I don't know that language (java?), there may be syntax errors.)
I woul...
BLE（一）概述&工作流程&常见问题 - 创客硬件开发 - 清泛IT社区，...
...。
还有一种形式的DOS攻击，快速不断的给远端蓝牙发送文件，而远端设备被大量的是否要接收该文件的命令冲击直到瘫痪。
0x32 针对蓝牙实现过程发起的攻击1. Bluesnarfing蓝牙定义了OBEX协议，这个协议的主要目的是实现数据对...
What is the difference between a web API and a web service?
...s not mean it SOAP base service REST also support Command Separated Value (CSV), JavaScript Object Notation (JSON) and Really Simple Syndication (RSS).
– Adiii
Aug 12 '17 at 4:03
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How can I trim leading and trailing white space?
...le the trailing white spaces when you read your data file. If you use read.csv or read.table you can set the parameterstrip.white=TRUE.
If you want to clean strings afterwards you could use one of these functions:
# Returns string without leading white space
trim.leading <- function (x) sub("^\\...