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So the type system doesn’t feel so static.

object wb{ def main(args:Array[String]){ println("Happy everyday!DATA-CENTER!") println(new java.util.Date()) } object w{ def main(args:Array[String]){ println("Happy everyday!") } } ~ ~ ~ Scala集成了函数编程和对象编程的优点. SEAMLESS JAVA INTEROP Sc…

Beginning Scala study note(8) Scala Type System

1. Unified Type System Scala has a unified type system, enclosed by the type Any at the top of the hierarchy and the type Nothing at the bottom of the hierarchy. All Scala types inherit from Any. # Using Any, Book extends AnyRef, and x is an Int that…

Could not load type 'System.Reflection.AssemblySignatureKeyAttribute' from assembly 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c

错误: Could not load type 'System.Reflection.AssemblySignatureKeyAttribute' from assembly 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c 调试或者在安装了VS2012的电脑上运行没事,但在干净的环境下,就报这个错误. 解决: 查了一下AssemblySignatureKeyAttribute,是.net framework4.…

foreach statement cannot operate on variables of type 'System.Web.UI.WebControls.Table' because 'System.Web.UI.WebControls.Table' does not contain a public definition for 'GetEnumerator'

错误:foreach statement cannot operate on variables of type 'System.Web.UI.WebControls.Table' because 'System.Web.UI.WebControls.Table' does not contain a public definition for 'GetEnumerator' foreach (TableRow tr in table) {   ... } 修改为 foreach (TableR…

Could not load type 'System.ServiceModel.Activation.HttpModule' from assembly 'System.ServiceModel, Version=3.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'

Could not load type 'System.ServiceModel.Activation.HttpModule' from assembly 'System.ServiceModel, Version=3.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' 问题描述: 再windows server 2008 r2 环境下搭建.net网站 ,运行是IIS7.0提示以上问题 解决方案: 这里需要注册一下ASP.NET 4.…

JsonException: Max allowed object depth reached while trying to export from type System.Single

在进行类转json字符串时,报错JsonException: Max allowed object depth reached while trying to export from type System.Single. ok,实际上是类的属性中有json不能识别的数据类型. JsonData public JsonData(bool boolean); public JsonData(double number); public JsonData(int number); public Js…

Could not load type 'System.Runtime.CompilerServices.ExtensionAttribute'

[TypeLoadException: Could not load type 'System.Runtime.CompilerServices.ExtensionAttribute' from assembly 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'.] System.ModuleHandle.ResolveType(RuntimeModule module, Int32 typ…

The Entity Framework provider type 'System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer' registered in the application config file for the ADO.NET provider with invariant name

可以强迫部署EntityFramework.SqlServer.dll这个文件到输出目录 找到1个老外的帖子,戳这里(本人测试无效,大家有可能试一下..) 解决方案以下: 在EF的上下文代码CS文件(Model1.Context.cs)中添加这个方法 public void FixEfProviderServicesProblem() { //The Entity Framework provider type 'System.Data.Entity.SqlServer.SqlProviderS…

解决：Could not load type 'System.ServiceModel.Activation.HttpModule' from assemb

解决:Could not load type 'System.ServiceModel.Activation.HttpModule' from assembly 'System.ServiceMode 今天我发布项目,获取运行出错如下: Could not load type 'System.ServiceModel.Activation.HttpModule' from assembly 'System.ServiceMode 解决:Could not load type 'System.Se…

详解反射->Type.System

反射先了解 一:system.Type 获取基本信息: Type.Name   //类名 Type.FullName //完整路径 Type.Namespace //空间名 public class student { public int Id { set; get; } public string Name { set; get; } public int Age { set; get; } } static void Main(string[] args) { student s = ,…