我是C#开发人员,最近开始使用Eclipse IDE编写Android应用程序.对我来说最显着的变化是内容辅助不会自动弹出.有办法吗?在VS中它几乎总是弹出.
PS和一个更普遍的问题:如何让eclipse看起来更像VS?
如何正确P /调用此功能?
const char * GetReplyTo(const char * pszInText, char * pszOutText, int len)
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我试过这样做并获得访问冲突异常:
[DllImport("SmartBot.dll", EntryPoint = "GetReplyTo")]
public static extern IntPtr GetReplyTo([In] [MarshalAs(UnmanagedType.LPStr)] string pszInText, IntPtr pszOutText, int len);
// somewhere below:
IntPtr pbuf = GCHandle.Alloc(new byte[1000], GCHandleType.Pinned).AddrOfPinnedObject();
GetReplyTo("hi", pbuf, 2);
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UPDATE 这是此文件的pascal头:
{***************************************************************************
* SmartBot Engine - Boltun source code,
* SmartBot Engine Dynamic Link Library
*
* Copyright (c) 2003 ProVirus,
* Created Alexander Kiselev Voronezh, Russia
***************************************************************************
SmartBot.pas : Header Pascal for SmartBot Engine.
} …Run Code Online (Sandbox Code Playgroud) 我有以下XElement:
<title>
<bold>Foo</bold>
<italic>Bar</italic>
</title>
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当我获得Value财产时,它返回FooBar没有空间.怎么解决?
我想缩短设置绑定
{Binding Source={x:Static properties:Settings.Default}, Path=Password}
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喜欢的东西
{settingsBinding Password}
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通过将声明的一部分移动到全局资源字典.但似乎我不能在这里声明绑定.任何想法如何解决这个问题?
我想至少让它像这样
{Binding Source={StaticResource Settings}, Path=Password}
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所以我不必每次都包含属性命名空间.
我想模拟多线程应用程序行为.有很多同步(ManualResetEvents等).我试图使用序列图,但它似乎缺乏方便的同步可视化.那么我必须使用哪种图表来完成这类任务呢?
如何停止动画,以便它不会产生Completed事件.这是一个简单的例子
<Window x:Class="WpfApplication5.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow" Height="248" Width="318">
<Grid>
<Border Width="20" Height="20" Background="Red" MouseEnter="Border_MouseEnter" MouseLeave="Border_MouseLeave" x:Name="border" />
</Grid>
</Window>
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支持代码:
private void Border_MouseEnter(object sender, MouseEventArgs e)
{
var a = new DoubleAnimation { To = 0, Duration = TimeSpan.FromMilliseconds(4000) };
a.Completed += (obj, args) => MessageBox.Show("Boom!");
border.BeginAnimation(Border.OpacityProperty, a);
}
private void Border_MouseLeave(object sender, MouseEventArgs e)
{
border.BeginAnimation(Border.OpacityProperty, null);
border.Opacity = 1;
}
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如果我在矩形变为白色之前移出鼠标,它会在一段时间后显示弹出窗口.怎么预防这个?让我们假设Border_MouseLeave并且Border_MouseEnter方法彼此不了解(它们不能相互传递动画实例变量).
我正在尝试使用JavaScript路由发出POST请求.在路线文件中:
POST /comments controllers.Clients.addComment(text: String, client: Int)
GET /assets/javascripts/routes controllers.Application.javascriptRoutes()
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在页面上:
jsRoutes.controllers.Clients.addComment(args.text, @client.id).ajax(...);
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但它创造了请求
POST http://localhost:9000/comments?text=qwe&client=1 HTTP/1.1
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如何让它在POST正文中传递参数而不是请求字符串?
我有以下数据:
player_id level talent_id
1 1 a
1 2 b
1 3 c
2 1 d
2 2 e
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并希望按player_id分组并将行作为结构,将level值作为结构字段名称:
player_id data
1 {_1 = a, _2 = b, _3 = c}
2 {_1 = d, _2 = e, _3 = null}
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级别列始终来自 {1, 2, 3} 集合,但某些级别可能会丢失(空)
到目前为止,我得到的是按player_id 进行聚合并附加结果数组:
talents as (
select
p.player_id,
array_agg(struct(p.level, p.talent_id)) as talents
from source.player_talent p
group by player_id
),
player_id data
1 [{1, a}, {2, b}, {3, c}]
2 {{1, d}, {2, …Run Code Online (Sandbox Code Playgroud) 我有 asyncio sqlalchemy 代码:
import asyncio
from sqlalchemy.orm import sessionmaker, declarative_base
from sqlalchemy import text, Column, Integer, String
from sqlalchemy.ext.asyncio import create_async_engine, AsyncSession
async_engine = create_async_engine(f'mysql+aiomysql://root:example@127.0.0.1:3306/spy-bot')
AsyncSession = sessionmaker(async_engine, class_=AsyncSession, expire_on_commit=False)
Base = declarative_base()
class User(Base):
__tablename__ = 'users'
id = Column(Integer, primary_key=True)
username = Column(String(255))
async def main():
async with AsyncSession() as session:
stmt = text('SELECT * FROM `users` LIMIT 1')
result = await session.execute(stmt)
user = result.one()
print(type(user), user)
asyncio.run(main())
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如何在仍然使用原始 sql 的情况下使会话查询返回 User 类上的实例?
在同步版本上,这看起来像
result = …Run Code Online (Sandbox Code Playgroud) 这是我得到的错误:
>./NuGet.exe pack MyAssembly.nuspec
Attempting to build package from 'MyAssembly.nuspec'.
Successfully created package 'V:\...\MyAssembly\bin\Publish\MyAssembly.0.0.0.nupkg'.
WARNING: Issue found with package 'MyAssembly'.
WARNING: Issue: Assembly outside lib folder.
WARNING: Description: The assembly 'lib/net46/MyAssembly.dll' is not inside the 'lib' folder and hence it won't be added as reference when the package is installed into a project.
WARNING: Solution: Move it into the 'lib' folder if it should be referenced.
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这包括我使用的内容:
<?xml version="1.0" encoding="utf-8"?>
<package>
<metadata>
<id>MyAssembly</id>
<version>0.0.0</version>
<authors>Poma</authors>
<description>MyAssembly</description>
</metadata>
<files>
<file src="MyAssembly.dll" …Run Code Online (Sandbox Code Playgroud) c# ×5
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