新增一個windows form application
同時加入一個新的類別檔案
1: public interface iCommand
2: {
3: void execute();
4: //void undo();
5: //void save();
6: //void load();
7: }
1: public class BusinessCheckCmd
2: {
3: // 身分查核
4: public void IdentityCheck()
5: {
6: MessageBox.Show("身分查核", "IdentityCheck()");
7: }
8: // 行李檢查+護照檢查
9: public void DoCheck()
10: {
11: MessageBox.Show("行李檢查", "DoCheck()");
12: MessageBox.Show("護照檢查", "DoCheck()");
13: }
14: }
1: public class IdentityCheckCmd:iCommand
2: {
3: private BusinessCheckCmd m_bcc;
4: public IdentityCheckCmd(BusinessCheckCmd bcc)
5: {
6: this.m_bcc = bcc;
7: }
8: public void execute()
9: {
10: m_bcc.IdentityCheck();
11: }
12: }
1: public class DoCheckCmd : iCommand
2:
3: private BusinessCheckCmd m_bcc;
4: public DoCheckCmd(BusinessCheckCmd bcc)
5: {
6: this.m_bcc = bcc;
7: }
8: public void execute()
9: {
10: m_bcc.DoCheck();
11: }
1: public class NoCmd : iCommand
2: {
3: public void execute()
4: {
5: MessageBox.Show("Do nothing", "NoCmd");
6: }
7: }
------------------------------------------------------------------------------------------------------------------------
1 public class InvokerCommand 2 { 3 private iCommand[] = commands; 4 // 建構子 5 public InvokerCommand() 6 { 7 commands = new iCommand[1]; 8 commands[0] = new NoCommand(); 9 } 10 // 具參數建構子 11 public InvokerCommand(int Num) 12 { 13 commands = new iCommand[num]; 14 for(int i=0; i<commands.Length; i++) 15 { 16 commands[i] = new NoCommand(); 17 } 18 } 19 public void SetCmd(iCommand cmd) 20 { 21 commands[0] = cmd; 22 } 23 public void SetCmd(int slot, iCommand cmd) 24 { 25 commands[slot] = cmd; 26 } 27 public void RunCmd() 28 { 29 commands[0].execute(); 30 } 31 public void RunCmd(int slot) 32 { 33 commands[slot].execute(); 34 } 35 public void RunAllCmd() 36 { 37 for(int i=0; i<commands.Length; i++) 38 { 39 commands[i].execute(); 40 } 41 } 42 } 43
client端應用程式
1: private void button1_Click(object sender, EventArgs e)
2: {
3: int num = 2;
4: InvokerCommand cmdSet = new InvokerCommand(num);
5: BusinessCheckCmd bcc = new BusinessCheckCmd(); // 業務
6:
7: IdentityCheckCmd icc = new IdentityCheckCmd(bcc); // 身分查核
8: DoCheckCmd dcc = new DoCheckCmd(bcc); // 行李檢查+護照檢查
9:
10: cmdSet.setCmd(0, icc);
11: cmdSet.setCmd(1, dcc);
12: cmdSet.runAllCmds();
13: }
1: private void button2_Click(object sender, EventArgs e)
2: {
3: InvokerCommand cmdSet = new InvokerCommand();
4: BusinessCheckCmd bcc = new BusinessCheckCmd(); // 業務
5: IdentityCheckCmd icc = new IdentityCheckCmd(bcc); // 身分查核
6: cmdSet.setCmd(0, icc);
7: cmdSet.runCmd(0);
8: }
參考資料: Visual C#程式設計實例演練與系統開發2013 許清榮
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