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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...
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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...
get size of json object
...al":"70.1"},{"id":"429","code":"0.84.SMAB00060","price":"4147.5","volume":"2.0","total":"82.95"},{"id":"428","code":"0.84.SMAB00050","price":"4077.5","volume":"3.0","total":"122.32"}]
var obj = JSON.parse(json);
var length = Object.keys(obj).length; //you get length json result 4
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JPA CascadeType.ALL does not delete orphans
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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)
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How to move/rename a file using an Ansible task on a remote system
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From version 2.0, in copy module you can use remote_src parameter.
If True it will go to the remote/target machine for the src.
- name: Copy files from foo to bar
copy: remote_src=True src=/path/to/foo dest=/path/to/bar
If you want ...
How to remove empty cells in UITableView? [duplicate]
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SWIFT 2.0 : self.tableView.tableFooterView = UIView(frame: CGRectZero)
– Nathaniel Blumer
Jan 27 '16 at 17:57
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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...
Taking screenshot on Emulator from Android Studio
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Starting with Android Studio 2.0 you can do it with the new emulator:
Just click 3 "Take Screenshot". Standard location is the desktop.
Or
Select "More"
Under "Settings", specify the location for your screenshot
Take your screenshot
UPDATE 22/07/2020
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How to Add Stacktrace or debug Option when Building Android Studio Project
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This answer is correct as of Android Studio 2.0 as well.
– Will Vanderhoef
Apr 25 '16 at 15:16
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UIView with rounded corners and drop shadow?
...y:0.8];
[v.layer setShadowRadius:3.0];
[v.layer setShadowOffset:CGSizeMake(2.0, 2.0)];
You can adjust the settings to suit your needs.
Also, add the QuartzCore framework to your project and:
#import <QuartzCore/QuartzCore.h>
See my other answer regarding masksToBounds.
Note
This may ...
Return multiple values to a method caller
... If you're targeting anything earlier than .NET Framework 4.7 or .NET Core 2.0, you'll need to install a NuGet package.
– Phil
May 3 '18 at 15:19
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