大约有 2,500 项符合查询结果（耗时：0.0195秒） [XML]
How does Dijkstra's Algorithm and A-Star compare?
I was looking at what the guys in the Mario AI Competition have been doing and some of them have built some pretty neat Mario bots utilizing the A* (A-Star) Pathing Algorithm.
...
实战做项目如何选择开源许可协议（一）-了解协议 - 开源 & Github - 清泛网...
...
常见的开源许可协议有：GPL、LGPL、BSD、Apache Licence vesion 2.0、MIT。这些协议有什么区别呢？
GPL，全称 GNU General Public License。它的主要内容为：只要在一个软件中使用(“使用”指类库引用或者修改后的代码) GPL 协议的产品，则...
pandas GroupBy columns with NaN (missing) values
....1.0.dev0+2004.g8d10bfb6f'
# Example from the docs
df
a b c
0 1 2.0 3
1 1 NaN 4
2 2 1.0 3
3 1 2.0 2
# without NA (the default)
df.groupby('b').sum()
a c
b
1.0 2 3
2.0 2 5
# with NA
df.groupby('b', dropna=False).sum()
a c
b
1.0 2 3
2.0 2 5...
JPA CascadeType.ALL does not delete orphans
...ments
delete all child elements
delete main row
close session
With JPA 2.0, you can now use the option orphanRemoval = true
@OneToMany(mappedBy="foo", orphanRemoval=true)
share
|
improve this ...
Format SQL in SQL Server Management Studio
... @Jordan: in Windows 10 the .Net Framework 3.5 SP1 (including .Net 2.0) is an optional feature of windows, that can be enabled in the "Turn Windows features on or off" screen/functionality. It's called ".NET Framework 3.5 (includes .NET 2.0 and 3.0)", and it's right at the top of the list of...
Sort a list by multiple attributes?
... return r #keep looping till you see a difference
return r
Lst = [(4, 2.0), (4, 0.01), (4, 0.9), (4, 0.999),(4, 0.2), (1, 2.0), (1, 0.01), (1, 0.9), (1, 0.999), (1, 0.2) ]
Lst.sort(lambda x,y:multi_attribute_sort(x,y)) #The Lambda of the Lambda
for rec in Lst: print str(rec)
Here's a way to r...
Can I keep Nuget on the jQuery 1.9.x/1.x path (instead of upgrading to 2.x)?
...the config change, an update should not upgrade your jQuery package to the 2.0 release. There have been issues in the past with the UI package manager not respecting the allowedVersions attribute (https://nuget.codeplex.com/workitem/1891), so you may have to use the command line if you encounter thi...
How to detect Windows 64-bit platform with .NET?
In a .NET 2.0 C# application I use the following code to detect the operating system platform:
29 Answers
...
How to remove empty cells in UITableView? [duplicate]
...
SWIFT 2.0 : self.tableView.tableFooterView = UIView(frame: CGRectZero)
– Nathaniel Blumer
Jan 27 '16 at 17:57
...
“INSERT IGNORE” vs “INSERT … ON DUPLICATE KEY UPDATE”
...th many rows, I want to skip duplicate entries that would otherwise cause failure. After some research, my options appear to be the use of either:
...