實驗設(shè)計模式第1頁/共18頁要求本周日最后一次實驗時（12月23號晚18:00~22:00），前三次未交作業(yè)的同學(xué)將作業(yè)補交。本次實驗為選做實驗，設(shè)計模式的內(nèi)容請大家自學(xué)。第2頁/共18頁抽象工廠模式結(jié)構(gòu)圖實驗?zāi)康模?.理解抽象工廠設(shè)計模式的含義

2.練習(xí)抽象工廠模式的實現(xiàn)

3.掌握學(xué)習(xí)設(shè)計模式的一般方法第3頁/共18頁問題編寫一個程序來完成花園的規(guī)劃，花園可能是季生植物型花園、蔬菜型花園或多年生植物型花園。要解決的問題：邊緣種植什么植物中央種植什么植物陰涼部分種植什么（用一個圖片框來模擬，在一個圖片框中的相應(yīng)位置處標出植物類型，灰色的圓表示陰涼部分。）以下是以C＃語言給出的各參考類和運行結(jié)果。請實現(xiàn)這一程序，并分析抽象工廠模式的應(yīng)用情況，使用的程序設(shè)計語言不限。第4頁/共18頁基類GardenusingSystem;usingSystem.Drawing;namespaceGardener{ ///<summary> ///SummarydescriptionforGarden. ///</summary> publicclassGarden{ protectedPlantcenter,shade,border; protectedboolshowCenter,showShade,showBorder; //selectwhichonestodisplay publicvoidsetCenter(){showCenter=true;} publicvoidsetBorder(){showBorder=true;} publicvoidsetShade(){showShade=true;} //draweachplant publicvoiddraw(Graphicsg){ if(showCenter)center.draw(g,100,100); if(showShade)shade.draw(g,10,50); if(showBorder)border.draw(g,50,150); } }}第5頁/共18頁Plant對象設(shè)置植物名字，并繪制自己usingSystem;usingSystem.Drawing;namespaceGardener{ ///<summary> ///SummarydescriptionforPlant. ///</summary> publicclassPlant { privatestringname; privateBrushbr; privateFontfont; publicPlant(stringpname){ name=pname;//savename font=newFont("Arial",12); br=newSolidBrush(Color.Black); } //------------- publicvoiddraw(Graphicsg,intx,inty){ g.DrawString(name,font,br,x,y); } }}第6頁/共18頁季生植物型花園usingSystem;usingSystem.Drawing;namespaceGardener{ ///<summary> ///SummarydescriptionforAnnualGarden. ///</summary> publicclassAnnualGarden:Garden { publicAnnualGarden(){ shade=newPlant("Coleus"); border=newPlant("Alyssum"); center=newPlant("Marigold"); } }}第7頁/共18頁蔬菜型花園usingSystem;namespaceGardener{ ///<summary> ///SummarydescriptionforVeggieGarden. ///</summary> publicclassVeggieGarden:Garden { publicVeggieGarden(){ shade=newPlant("Broccoli"); border=newPlant("Peas"); center=newPlant("Corn"); } }}第8頁/共18頁多年生植物型花園usingSystem;namespaceGardener{ ///<summary> ///SummarydescriptionforPerennialGarden. ///</summary> publicclassPerennialGarden:Garden { publicPerennialGarden(){ shade=newPlant("Astilbe"); border=newPlant("Dicentrum"); center=newPlant("Sedum"); } }}第9頁/共18頁用戶界面——Form第10頁/共18頁用戶界面——單選按鈕 privatevoidopAnnual_CheckedChanged(objectsender,EventArgse){ setGarden(newAnnualGarden()); } //----- privatevoidopVegetable_CheckedChanged(objectsender,EventArgse){ setGarden(newVeggieGarden()); } //----- privatevoidopPerennial_CheckedChanged(objectsender,EventArgse){ setGarden(newPerennialGarden()); } //----- privatevoidsetGarden(Gardengd){ garden=gd; //savecurrentgarden gdPic1.setGarden(gd); //tellpicturebos gdPic1.Refresh(); //repaintit ckCenter.Checked=false; //clearall ckBorder.Checked=false; //check ckShade.Checked=false; //boxes }第11頁/共18頁用戶界面——復(fù)選框 privatevoidckCenter_CheckedChanged(objectsender,System.EventArgse){ garden.setCenter(); gdPic1.Refresh(); } //----- privatevoidckBorder_CheckedChanged(objectsender,System.EventArgse){ garden.setBorder(); gdPic1.Refresh(); } //----- privatevoidckShade_CheckedChanged(objectsender,System.EventArgse){ garden.setShade(); gdPic1.Refresh(); }第12頁/共18頁圖片框（PictureBox）usingSystem;usingSystem.Collections;usingSystem.ComponentModel;usingSystem.Drawing;usingSystem.Data;usingSystem.Windows.Forms;namespaceGardener{ ///<summary> ///SummarydescriptionforGdPic. ///</summary> publicclassGdPic:System.Windows.Forms.PictureBox { ///<summary> ///Requireddesignervariable. ///</summary> privateSystem.ComponentModel.Containercomponents=null; privateBrushbr; privateGardengden; privatevoidinit(){ br=newSolidBrush(Color.LightGray); } publicGdPic() { //ThiscallisrequiredbytheWindows.FormsFormDesigner. InitializeComponent(); init(); } publicvoidsetGarden(Gardengarden){ gden=garden; } protectedoverridevoidOnPaint(PaintEventArgspe){ Graphicsg=pe.Graphics; g.FillEllipse(br,5,5,100,100); if(gden!=null) gden.draw(g); }第13頁/共18頁圖片框（PictureBox）（續(xù)） ///<summary> ///Cleanupanyresourcesbeingused. ///</summary> protectedoverridevoidDispose(booldisposing) { if(disposing) { if(components!=null) { components.Dispose(); } } base.Dispose(disposing); } #regionComponentDesignergeneratedcode ///<summary> ///RequiredmethodforDesignersupport-donotmodify ///thecontentsofthismethodwiththecodeeditor. ///</summary> privatevoidInitializeComponent() { // //GdPic //

} #endregion }}第14頁/共18頁類圖GdPicGardensetCenter()setBor