我想为Android创建一款游戏,并希望尝试新的东西.
我真的很喜欢python,并希望用它来开发Android游戏.
游戏并不简单,它将是3D RPG游戏.我找到了Kivy Crossplatform Framework和PyGame.我真的很喜欢这两个,但我不确定Python是否适合我.
可能重复:
创建单实例应用程序的正确方法是什么?
如何检查我的应用程序是否已打开?如果我的应用程序已经运行,我想显示它而不是打开一个新实例.
我有这个代码来创建新的SQL表,当我执行它时它显示我在屏幕截图上的这个错误.在我的数据库中没有这样的表.它显示此错误的任何名称的表.谁能帮我?
public void Create(string TName, string ConString)
{
try
{
using (SqlCommand cmd = new SqlCommand("CREATE TABLE [dbo].['" + TName + "']("
+ "[ID] [int] IDENTITY(1,1) NOT NULL,"
+ "[DateTime] [date] NOT NULL,"
+ "[BarCode] [nvarchar](max) NOT NULL,"
+ "[ArtNumber] [nvarchar](max) NOT NULL,"
+ "[ProductName] [nvarchar](50) NOT NULL,"
+ "[Quantity] [int] NOT NULL,"
+ "[SelfPrice] [decimal](18, 2) NOT NULL,"
+ "[Price] [decimal](18, 2) NOT NULL,"
+ "[Disccount] [int] NULL,"
+ "[Comment] [nvarchar](max) NULL,"
+ "CONSTRAINT ['" + TName + "'] …Run Code Online (Sandbox Code Playgroud) 我有变数 WCHAR sDisplayName[1024];
如何检查是否sDisplayName包含字符串"example"?
我有代码捕获Global.asax中的所有异常
protected void Application_Error(object sender, EventArgs e)
{
System.Web.HttpContext context = HttpContext.Current;
System.Exception exc = context.Server.GetLastError();
var ip = context.Request.ServerVariables["REMOTE_ADDR"];
var url = context.Request.Url.ToString();
var msg = exc.Message.ToString();
var stack = exc.StackTrace.ToString();
}
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如何在发生此错误的地方获取控制器名称
我如何获得请求客户端IP?
我可以过滤异常吗?我不需要404,504 ......错误
谢谢
Microsoft是否为非Office应用程序提供了功能区控件?如果没有,有没有免费的?
我喜欢该组件,并希望使用它我的WinForm 4.0应用程序.
我有两个Windows MainWindow和Login.显示登录位于mainWindow的按钮
this.Hide();
Login li = new Login();
li.Show();
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在登录窗口上是一个按钮,它检查密码如何在密码正确的情况下显示MainWindow?
我在循环的第二次迭代中得到以下错误:
Offset and length were out of bounds for the array or count is greater than the number of elements from index to the end of the source collection.
这是我的循环
FileStream fs = new FileStream("D:\\06.Total Eclipse Of The Moon.mp3", FileMode.Open);
byte[] _FileName = new byte[1024];
long _FileLengh = fs.Length;
int position = 0;
for (int i = 1024; i < fs.Length; i += 1024)
{
fs.Read(_FileName, position, Convert.ToInt32(i));
sck.Client.Send(_FileName);
Thread.Sleep(30);
long unsend = _FileLengh - position;
if (unsend < 1024) …Run Code Online (Sandbox Code Playgroud) 我用libGDX setup ui创建了一个项目.该项目在Eclipse中运行良好但是当我在Android Studio中导入它时,android项目MainActivity.java抛出了4个异常:
java: cannot access com.badlogic.gdx.Application
class file for com.badlogic.gdx.Application not found
java: cannot find symbol
symbol: variable super
location: class com.vestrel00.nekko.MainActivity
java: cannot find symbol
symbol: method initialize(com.vestrel00.nekko.KFNekko,com.badlogic.gdx.backends.android.AndroidApplicationConfiguration)
location: class com.vestrel00.nekko.MainActivity
java: method does not override or implement a method from a supertype
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有没有人有办法解决吗?
我真的很喜欢Rails 4新的Enum功能,但我想使用我的枚举
enum status: [:active, :inactive, :deleted]
在每个模型中.我找不到任何方式如何声明例如config/initializes/enums.rb并包含每个模型
我很新Ruby on Rails,需要你的帮助才能找到解决方案