Home pinhole wireless surveillance camera where to sell? How much is the miniature camera?
And object-oriented design is from another way to solve the problem. The whole backgammon can be divided into 1, black and white sides, the two sides of the behavior is exactly the same, 2, board system, responsible for drawing the screen, 3, the rules of the system, responsible for judging such as foul, winning or losing. The first type of object (the player object) is responsible for accepting the user's input and informing the change of the chessboard layout of the second type of object (checkerboard object). The chessboard object receives the i's change in the piece to be responsible for showing the change on the screen, The third type of object (rule system) to determine the chess game.
It is clear that object-oriented is the function to divide the problem, not the steps. The same is the plotting of chessboards, which are scattered in the total number of steps in a process-oriented design, and it is likely that different versions will be drawn, since the designer will take a variety of simplifications in the light of the actual situation. And object-oriented design, the drawing may only appear in the board object, thus ensuring the unity of the drawing.
For example, backgammon, process-oriented design ideas is the first step to analyze the problem: 1, start the game, 2, sunspots first, 3, draw the screen, 4, judge win or lose, 5, turn white, 6, draw the screen, 8, return to step 2, 9, output the final result. The above steps with each of the different functions to achieve, the problem is solved.
Object-oriented is the decomposition of the composition of the transaction into the various objects, the purpose of the object is not to complete a step, but to describe a thing in the whole problem-solving steps in the behavior.
Wireless monitoring is estimated to be 2-5 or so, not too expensive, clearly not to sell
