谁帮我看下这段代码，嘛意思？

[misssdf]

 var sig = new SignalSource(SignalSourceType.ATV, 1);
            try
            {
                sig = CurrentSignal.Type == SignalSourceType.ATV
                          ? new SignalSource(SignalSourceType.DTV, 1)
                          : CurrentSignal.Type == SignalSourceType.DTV
                                ? new SignalSource(SignalSourceType.视频, 1)
                                : CurrentSignal.Type == SignalSourceType.视频
                                      ? new SignalSource(SignalSourceType.分量, 1)
                                      : CurrentSignal.Type == SignalSourceType.分量
                                            ? new SignalSource(SignalSourceType.PC, 1)
                                            : CurrentSignal.Type == SignalSourceType.PC
                                                  ? new SignalSource(SignalSourceType.HDMI, 1)
                                                  : CurrentSignal.Type == SignalSourceType.HDMI &&
                                                    CurrentSignal.Route == 1
                                                        ? new SignalSource(SignalSourceType.HDMI, 2)
                                                        : CurrentSignal.Type == SignalSourceType.HDMI &&
                                                          CurrentSignal.Route == 2
                                                              ? new SignalSource(SignalSourceType.HDMI, 3)
                                                              : new SignalSource(SignalSourceType.ATV, 1);
                pmtMsg.Dispatcher.Invoke(new System.Windows.Forms.MethodInvoker(() => ChangeSignal(sig)));
            }
            catch (Exception ex)
            {
#if DEBUG
                Utils.CommonTools.WriteException(ex, "切换信号源代码异常");
#endif
                return;
            }

[t842938838]

简单的就用这个，复杂的还是 if else 可读性强

[Mxuzz]

[Quote=引用 17 楼 ohkuy 的回复:]
sig = CurrentSignal.Type == SignalSourceType.ATV
? new SignalSource(SignalSourceType.DTV, 1)
: CurrentSignal.Type == SignalSourceType.DTV
? new SignalSource(SignalSourceType.视频, 1)
: Curre……
[/Quote]


同意，呵呵 用case语句 或者 if else

[言多必失]

这是对多次三元操作符的应用

[consuy]

不知道撒

[ymf5555]

挺好看的

[ErrorCode1987]

看下三元运算符
替换成if else 你就明白了

[zhujiawei7]

写的挺艺术的

就是if else

[kobevivo]

不清楚哦

[EdsionWang]

这代码写的....

像上面说的，换成if else就都清楚了

[misssdf]

[Quote=引用 6 楼 andywangguanxi 的回复:]

这代码写的....

像上面说的，换成if else就都清楚了
[/Quote]
话说不会替换。。。

[小笨熊]

这代码让我看和很晕哦，。可读性太差了吧。。。

[fantasy_song]

if(CurrentSignal.Type == SignalSourceType.ATV)
{
sig = new SignalSource(SignalSourceType.DTV, 1);
}
else if(CurrentSignal.Type == SignalSourceType.DTV)
{
sig = new SignalSource(SignalSourceType.视频, 1);
}
else if......

[小笨熊]

这代码让我看着很晕哦，。可读性太差了吧。。。三目运算符的优先级从右到左，自己转化成if else就可以了。

[ChrisAK]

这蛋疼的三目运算符...

[战灬龙]

楼上说的对呀！！！！！

[shighui]

比我写的还那个啥，我最多用二个三元符。呵呵

[Katherine]

三元运算符：
<test>?<result if ture>:<result if false>
适用于简单的赋值语句，大量代码时用if。

[肖恩]

[Quote=引用 11 楼 chrisak 的回复:]
这蛋疼的三目运算符...
[/Quote]
同意

[Fry_cici]

后面的？ 都是根据 CurrentSignal.Type == SignalSourceType.ATV

这个条件来的

[ohkuy]

sig = CurrentSignal.Type == SignalSourceType.ATV
? new SignalSource(SignalSourceType.DTV, 1)
: CurrentSignal.Type == SignalSourceType.DTV
? new SignalSource(SignalSourceType.视频, 1)
: CurrentSignal.Type == SignalSourceType.视频
? new SignalSource(SignalSourceType.分量, 1)
-----------------------------------------
换种形式，再看看：

            switch (CurrentSignal.Type)
            { 
                case SignalSourceType.ATV:
                    sig=new SignalSource(SignalSourceType.DTV, 1)
                    break;
                case SignalSourceType.DTV:
                    sig=new SignalSource(SignalSourceType.视频, 1)
                    break;
                case SignalSourceType.视频:
                    sig=new SignalSource(SignalSourceType.分量, 1)
                    break;
            }
//或者用简单工厂模式更简单一点