deletshapescommand.java

来自「面向对象的设计思想」· Java 代码 · 共 14 行

public class DeletShapesCommand extends Command {
	
  public DeletShapesCommand() {
     }

  public void execute(DrawModel draw) {
    try {
    	 result=draw.deletShapes();
    }
    catch (Exception ex) {
      this.excep = ex;
    }
  }
}