VS实现数据库的读写技术

a. 输入多位同学的成绩（名字/成绩（key/value）），输出平均成绩、最高成绩等,并且根据用户输入的姓名输出该学生的成绩（输入名字不对给出提示(ContainsKey())）。（哈希表、泛型排序列表等多种方式实现）。 b. 在windows窗体中进行输入和输出，输入出错时能给出提示。 对数据库中表进行读写。在退出程序前先将输入的成绩存入score.mdb中的表score(或自定数据库与表)中，下次再输入时先从数据库中读出已有的成绩。

//------------------------------------------------------------------------------
// 
//     此代码由工具生成。
//     运行时版本:4.0.30319.18449
//
//     对此文件的更改可能会导致不正确的行为，并且如果
//     重新生成代码，这些更改将会丢失。
// 
//------------------------------------------------------------------------------

#pragma warning disable 1591

namespace WindowsFormsApplication4 {
    
    
    /// 

    ///Represents a strongly typed in-memory cache of data.
    ///

    [global::System.Serializable（）]
    [global::System.ComponentModel.DesignerCategoryAttribute（“code“）]
    [global::System.ComponentModel.ToolboxItem（true）]
    [global::System.xml.Serialization.xmlSchemaProviderAttribute（“GetTypedDataSetSchema“）]
    [global::System.xml.Serialization.xmlRootAttribute（“Database1DataSet“）]
    [global::System.ComponentModel.Design.HelpKeywordAttribute（“vs.data.DataSet“）]
    public partial class Database1DataSet : global::System.Data.DataSet {
        
        private Table_1DataTable tableTable_1;
        
        private global::System.Data.SchemaSerializationMode _schemaSerializationMode = global::System.Data.SchemaSerializationMode.IncludeSchema;
        
        [global::System.Diagnostics.DebuggerNonUserCodeAttribute（）]
        [global::System.CodeDom.Compiler.GeneratedCodeAttribute（“System.Data.Design.TypedDataSetGenerator“ “4.0.0.0“）]
        public Database1DataSet（） {
            this.BeginInit（）;
            this.InitClass（）;
            global::System.ComponentModel.CollectionchangeEventHandler schemaChangedHandler = new global::System.ComponentModel.CollectionchangeEventHandler（this.SchemaChanged）;
            base.Tables.Collectionchanged += schemaChangedHandler;
            base.Relations.Collectionchanged += schemaChangedHandler;
            this.EndInit（）;
        }
        
        [global::System.Diagnostics.DebuggerNonUserCodeAttribute（）]
        [global::System.CodeDom.Compiler.GeneratedCodeAttribute（“System.Data.Design.TypedDataSetGenerator“ “4.0.0.0“）]
        protected Database1DataSet（global::System.Runtime.Serialization.SerializationInfo info global::System.Runtime.Serialization.StreamingContext context） : 
                base（info context false） {
            if （（this.IsBinarySerialized（info context） == true）） {
                this.InitVars（false）;
                global::System.ComponentModel.CollectionchangeEventHandler schemaChangedHandler1 = new global::System.ComponentModel.CollectionchangeEventHandler（this.SchemaChanged）;
                this.Tables.Collectionchanged += schemaChangedHandler1;
                this.Relations.Collectionchanged += schemaChangedHandler1;
                return;
            }
            string strSchema = （（string）（info.GetValue（“xmlSchema“ typeof（string））））;
            if （（this.DetermineSchemaSerializationMode（info context） == global::System.Data.SchemaSerializationMode.IncludeSchema）） {
                global::

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2015-10-17 12:01  Hash表\
     目录           0  2015-11-16 21:09  Hash表\WindowsFormsApplication4\
     目录           0  2015-11-16 21:09  Hash表\WindowsFormsApplication4\WindowsFormsApplication4\
     文件       79513  2015-10-17 10:50  Hash表\WindowsFormsApplication4\WindowsFormsApplication4\Database1DataSet.Designer.cs
     文件           3  2015-10-17 10:50  Hash表\WindowsFormsApplication4\WindowsFormsApplication4\Database1DataSet.xsc
     文件        9335  2015-10-17 10:50  Hash表\WindowsFormsApplication4\WindowsFormsApplication4\Database1DataSet.xsd
     文件           3  2015-10-17 10:50  Hash表\WindowsFormsApplication4\WindowsFormsApplication4\Database1DataSet.xss
     文件        9625  2015-10-14 21:00  Hash表\WindowsFormsApplication4\WindowsFormsApplication4\Form1.Designer.cs
     文件        2461  2015-10-17 11:48  Hash表\WindowsFormsApplication4\WindowsFormsApplication4\Form1.cs
     文件        5817  2015-10-14 20:57  Hash表\WindowsFormsApplication4\WindowsFormsApplication4\Form1.resx
     文件        1354  2015-10-17 11:13  Hash表\WindowsFormsApplication4\WindowsFormsApplication4\Program.cs
     目录           0  2015-11-16 21:09  Hash表\WindowsFormsApplication4\WindowsFormsApplication4\Properties\
     文件        1410  2015-10-14 20:54  Hash表\WindowsFormsApplication4\WindowsFormsApplication4\Properties\AssemblyInfo.cs
     文件        2900  2015-10-14 20:54  Hash表\WindowsFormsApplication4\WindowsFormsApplication4\Properties\Resources.Designer.cs
     文件        5612  2015-10-14 20:54  Hash表\WindowsFormsApplication4\WindowsFormsApplication4\Properties\Resources.resx
     文件        1715  2015-10-17 10:50  Hash表\WindowsFormsApplication4\WindowsFormsApplication4\Properties\Settings.Designer.cs
     文件        1002  2015-10-17 10:50  Hash表\WindowsFormsApplication4\WindowsFormsApplication4\Properties\Settings.settings
     文件        4376  2015-10-17 11:06  Hash表\WindowsFormsApplication4\WindowsFormsApplication4\WindowsFormsApplication4.csproj
     文件         421  2015-10-17 10:50  Hash表\WindowsFormsApplication4\WindowsFormsApplication4\app.config
     目录           0  2015-10-17 10:50  Hash表\WindowsFormsApplication4\WindowsFormsApplication4\bin\
     目录           0  2015-11-16 21:09  Hash表\WindowsFormsApplication4\WindowsFormsApplication4\bin\Debug\
     文件       40448  2015-10-17 11:48  Hash表\WindowsFormsApplication4\WindowsFormsApplication4\bin\Debug\WindowsFormsApplication4.exe
     文件         421  2015-10-17 10:50  Hash表\WindowsFormsApplication4\WindowsFormsApplication4\bin\Debug\WindowsFormsApplication4.exe.config
     文件       81408  2015-10-17 11:48  Hash表\WindowsFormsApplication4\WindowsFormsApplication4\bin\Debug\WindowsFormsApplication4.pdb
     文件       11600  2015-10-17 11:56  Hash表\WindowsFormsApplication4\WindowsFormsApplication4\bin\Debug\WindowsFormsApplication4.vshost.exe
     文件         421  2015-10-17 10:50  Hash表\WindowsFormsApplication4\WindowsFormsApplication4\bin\Debug\WindowsFormsApplication4.vshost.exe.config
     目录           0  2015-11-16 21:10  Hash表\WindowsFormsApplication4\WindowsFormsApplication4\bin\Release\
     目录           0  2015-10-14 21:18  Hash表\WindowsFormsApplication4\WindowsFormsApplication4\obj\
     目录           0  2015-10-14 21:18  Hash表\WindowsFormsApplication4\WindowsFormsApplication4\obj\x86\
     目录           0  2015-11-16 21:09  Hash表\WindowsFormsApplication4\WindowsFormsApplication4\obj\x86\Debug\
     文件        5420  2015-10-17 10:30  Hash表\WindowsFormsApplication4\WindowsFormsApplication4\obj\x86\Debug\DesignTimeResolveAssemblyReferences.cache
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