計(jì)算機(jī)網(wǎng)絡(luò)-網(wǎng)絡(luò)程序設(shè)計(jì)

1、廣州大學(xué)學(xué)生實(shí)驗(yàn)報(bào)告開課學(xué)院及實(shí)驗(yàn)室：計(jì)算機(jī)科學(xué)與工程實(shí)驗(yàn)室2014年12月13日學(xué)院計(jì)算機(jī)科學(xué)與教育軟件學(xué)院年級/專業(yè)/班姓名學(xué)號實(shí)驗(yàn)課程名稱計(jì)算機(jī)網(wǎng)絡(luò)實(shí)驗(yàn)成績實(shí)驗(yàn)項(xiàng)目名稱網(wǎng)絡(luò)程序設(shè)計(jì)指導(dǎo)老師熊偉1、 程序演示使用蘋果編程語言實(shí)現(xiàn)程序效果，模擬器運(yùn)行結(jié)果如下：啟動(dòng)后畫面單擊C機(jī)單擊C后單擊D，顯示結(jié)果單擊A后單擊C，顯示結(jié)果2、 程序設(shè)計(jì)思路根據(jù)網(wǎng)橋轉(zhuǎn)發(fā)規(guī)則，我首先設(shè)計(jì)了PC類，代表主機(jī)。Bridege類，代表網(wǎng)橋，實(shí)例方法包括一些數(shù)據(jù)幀轉(zhuǎn)發(fā)，登記移除轉(zhuǎn)發(fā)表等。Framing類，代表數(shù)據(jù)幀，包括一些屬性：目的地址，源地址等。由于算法并不復(fù)雜，而且基于ios平臺的開發(fā)本來就比較熟手，開發(fā)過程并

2、沒遇到什么困難。3、 程序流程圖3、 程序源代碼由于篇幅有限，就不粘貼過多的代碼。所有源代碼壓縮至附件上傳。下面僅顯示部分代碼。Network類，構(gòu)建UI畫面，并負(fù)責(zé)協(xié)調(diào)處理PC，Bridge直接數(shù)據(jù)的傳遞。/ Network.m/ BridgeTransfer/ Created by Jeans on 12/14/14./ Copyright (c) 2014 Jeans. All rights reserved./#import Network.h#import ShapeView.h#import Bridge.h#import PC.h#define AppSize UIScreen

3、mainScreen.applicationFrame.size#define HorizontalSpacing 35#define VerticalSpacing 80#define kAnimationDuring 2interface Network()property (strong, nonatomic) PC *A;property (strong, nonatomic) PC *B;property (strong, nonatomic) PC *C;property (strong, nonatomic) PC *D;property (strong, nonatomic)

4、Bridge *B1;property (strong, nonatomic) ShapeView *pathShapeView;property (strong, nonatomic) ShapeView *backgroundShapeView;property (strong, nonatomic) UILabel *resultLabel;endimplementation Network- (id)initWithFrame:(CGRect)frame if (self = super initWithFrame:frame)/ self.backgroundColor = UICo

5、lor grayColor; /添加對象 CGPoint pcPoint = CGPointMake(HorizontalSpacing, VerticalSpacing); self.A = self NewPCByOrigin:pcPoint; self.A.name = A; pcPoint.x += HorizontalSpacing + self.A.frame.size.width; self bringSubviewToFront:self.A; self.B = self NewPCByOrigin:pcPoint; self.B.name = B; pcPoint.x +=

6、HorizontalSpacing + self.B.frame.size.width; self.B1 = self NewBridgeByOrigin:CGPointMake(pcPoint.x, 10); pcPoint.x += HorizontalSpacing + self.B1.frame.size.width; self.B1.port1PCs = self.A,self.B; self.C = self NewPCByOrigin:pcPoint; self.C.name = C; pcPoint.x += HorizontalSpacing + self.C.frame.s

7、ize.width; self.D = self NewPCByOrigin:pcPoint; self.D.name = D; pcPoint.x += HorizontalSpacing + self.D.frame.size.width; self.B1.port2PCs = self.C,self.D; /繪制背景線 CGFloat y = self.B1.frame.origin.y + self.B1.frame.size.height - 10; UIBezierPath *path = UIBezierPath bezierPath; path moveToPoint:CGPo

8、intMake(10, y); path addArcWithCenter:CGPointMake(10, y) radius:4.0 startAngle:0 endAngle:2*M_PI clockwise:YES; CGPoint p = CGPointMake(self.B1.frame.origin.x, y); path addLineToPoint:p; p.x += self.B1.frame.size.width; path moveToPoint:p; p.x = self.frame.size.width - 10; path addLineToPoint:p; pat

9、h addArcWithCenter:p radius:4.0 startAngle:0 endAngle:2*M_PI clockwise:YES; p.x = self.A.frame.origin.x+self.A.frame.size.width/2; path moveToPoint:p; path addLineToPoint:CGPointMake(p.x, VerticalSpacing); p.x = self.B.frame.origin.x+self.B.frame.size.width/2; path moveToPoint:p; path addLineToPoint

10、:CGPointMake(p.x, VerticalSpacing); p.x = self.C.frame.origin.x+self.C.frame.size.width/2; path moveToPoint:p; path addLineToPoint:CGPointMake(p.x, VerticalSpacing); p.x = self.D.frame.origin.x+self.D.frame.size.width/2; path moveToPoint:p; path addLineToPoint:CGPointMake(p.x, VerticalSpacing); self

11、.backgroundShapeView.shapeLayer.path = path.CGPath; self drawLineAnimation:self.backgroundShapeView.shapeLayer; return self;- (PC*)NewPCByOrigin:(CGPoint)aOrigin PC *pc = (PC*)NSBundle mainBundleloadNibNamed:PC owner:self options:nillastObject; pc.frame = CGRectMake(aOrigin.x, aOrigin.y, pc.frame.si

12、ze.width, pc.frame.size.height); pc.delegate = self; self addSubview:pc; return pc;- (Bridge*)NewBridgeByOrigin:(CGPoint)aOrigin Bridge *bri = (Bridge*)NSBundle mainBundleloadNibNamed:Bridge owner:self options:nillastObject; bri.frame = CGRectMake(aOrigin.x, aOrigin.y, bri.frame.size.width, bri.fram

13、e.size.height); self addSubview:bri; return bri;- (ShapeView*)backgroundShapeView if (!_backgroundShapeView) _backgroundShapeView = ShapeView allocinit; _backgroundShapeView.shapeLayer.fillColor = nil; _backgroundShapeView.shapeLayer.strokeColor = UIColor colorWithRed:0 green:0 blue:0 alpha:1.CGColo

14、r; _backgroundShapeView.shapeLayer.lineWidth = 1; _backgroundShapeView.shapeLayer.frame = self.bounds; _backgroundShapeView.shapeLayer addSublayer:self.A.layer; _backgroundShapeView.shapeLayer addSublayer:self.B.layer; _backgroundShapeView.shapeLayer addSublayer:self.C.layer; _backgroundShapeView.sh

15、apeLayer addSublayer:self.D.layer; self.layer addSublayer:_backgroundShapeView.shapeLayer; return _backgroundShapeView;- (UILabel*)resultLabel if (!_resultLabel) _resultLabel = UILabel allocinitWithFrame:CGRectMake(self.B1.frame.origin.x+self.B1.frame.size.width/2 - 250,200,500,50); _resultLabel.tex

16、tAlignment = NSTextAlignmentCenter; _resultLabel.backgroundColor = UIColor clearColor; self.backgroundShapeView.shapeLayer addSublayer:_resultLabel.layer; return _resultLabel;#pragma mark - 畫線-(void)drawLineAnimation:(CALayer*)layer CABasicAnimation *bas = CABasicAnimation animationWithKeyPath:strok

17、eEnd; bas.duration = kAnimationDuring; bas.delegate = self; bas.fromValue = 0.0; bas.toValue = 1.0; layer addAnimation:bas forKey:key;#pragma mark - PC Delegate- (void)PCPressed:(PC *)aPC self.resultLabel.text = self.B1 addOrRemovePC:aPC;endBridge類，網(wǎng)橋類，根據(jù)網(wǎng)橋轉(zhuǎn)發(fā)規(guī)則實(shí)現(xiàn)轉(zhuǎn)發(fā)功能，并輸出對應(yīng)文字提示。/ Bridge.m/ BridgeTran

18、sfer/ Created by Jeans on 12/14/14./ Copyright (c) 2014 Jeans. All rights reserved./#import Bridge.h#import PC.hinterface Bridge()property (strong, nonatomic) NSMutableArray *currentPCs;endimplementation Bridge- (id)initWithCoder:(NSCoder *)aDecoder if (self = super initWithCoder:aDecoder) self cust

19、omInit; return self;- (id)initWithFrame:(CGRect)frame if (self = super initWithFrame:frame) self customInit; return self;- (void)customInit - (NSMutableArray*)currentPCs if (!_currentPCs) _currentPCs = NSMutableArray allocinit; return _currentPCs;- (NSString*)addOrRemovePC:(PC *)aPC NSString *string = nil; if (self.currentPCs containsObject:aPC) self.currentPCs removeObject:aPC; else self.currentPCs addObject:aPC; string = NSString stringWithFormat:%-,aPC.name; if