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那首先的话是给
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给水加上这个值属性
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你看，水之前在这里嘛，没有
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属性的，对吧
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有个状态什么之类的
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那现在给它加上去
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那加上去首先要
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解决这个单位的问题
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什么
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摄氏度
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克，这些问题
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那这个
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我们首先
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在这里
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原来这里是有单位的
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你看这个ISO-80000
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这个实际上就是导入一堆国际的单位嘛
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比如说，我们那个温度
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温度在哪里
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应该是
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这里
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这里
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这个
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对吧
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摄氏度这里，这下面温度
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这个，但你看它这个只是一个什么
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这是个对象
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这样
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这样，很简单
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列出来一个名字就完了
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那我们呢，就不用这里了
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我们
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自己搞一个温度
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而且我们用
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中文的
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来命名
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那首先我们就要
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导入
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一个单位
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还有一个是数值的问题
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你是整数、实数等等
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那这些我们都要导入一下
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怎么导
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你看这里
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49
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SysML附带一些标准的
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导进来
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这里，SysML这里
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点中
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之前我们也在这里导过嘛
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导过ISO-80000这个
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在这里嘛
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对吧
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但我们现在不用这个
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放进来
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下一个，放这里
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然后我们导这个
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首先这个是
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定义了一些值类型
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对吧
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数值，整数
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实数、复数等等
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68
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那我们倒进来，放这里
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好
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这一个，我们再导一个
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这个也导
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这个是单位
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还有一个叫Quantity Kind
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实际上指的就是那个
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度量的维度
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长度、质量等等
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维度
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应该它另外一个名字叫维度
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这怎么翻译我也不知道了
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长度
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体积，类似这样的
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那这个要注意，跟我们那个值属性还是有区别的
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比如说，同样是长度这个维度
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你可以描述高度
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也可以描述周长
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对吧
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89
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这个导进来
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好
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你看我们这里有这么两个库
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对吧
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那现在我们就开始来构造一下了
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先把这个关掉
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这个隐掉
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好
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这个也关掉
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把这个也关掉
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好
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我们值类型这里，我们就放这里吧
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添加一个图
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103
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块定义图，值类型
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把它放大一点
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老是选不中
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108
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好
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那首先，我们来一个单位
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单位的话
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一个做法
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你看它这里是
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给出了单位
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和QuantityKind这个类
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那
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应该怎么做
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我们现在放上去的单位
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实际上是这个东西的一个对象
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这是block，我们定义的单位实际上是这个的一个对象
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那我们可以把这个拖上去
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比如说，把这个拖上来
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然后
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形成一个对象
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对象命名为
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某个单位
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比如说，摄氏度什么之类的
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怎么做
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这里，拖上来
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131
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然后这里命名，摄氏度
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这是一种
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另外一种，干脆就不要管这两个类了
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我们就从这里搞
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这里
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放上一个
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单位
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然后这里
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摄氏度
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然后这个符号什么在哪里呀
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符号
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就在这里
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这个地方设置
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符号就是摄氏度那个符号
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这个
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对吧
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好
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这是一个
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那我们来
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这个QuantityKind的这个维度这个
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我们也放一个
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这是温度
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起名叫温度
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这个有了
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对吧
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那现在我们要有一个
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水有一个值属性了
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我们叫水温
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它是一个值类型，这里放上来
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水温
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水温是一个什么
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是一个
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是一个实数
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我们用实数来表达
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对不对
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那实数我们在哪里设
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你这个类型已经是值类型了
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不能说类型，你再敲Real
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那不行
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它是值类型
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那我们必须要把它跟这个
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这个地方
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这个
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这个
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Real这个
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拖上来
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那它跟这个是什么关系呢
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严格来说
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应该是一个组合的关系
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但是呢
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我看了
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很多标准上的操作
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都说这个用的泛化关系
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水温是一种实数，实际上是不对的
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泛化关系
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你说圆是一种点
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就像我们说嘛，圆和点的关系
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圆是一种点，可以吗
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好像可以，对吧
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200
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圆有个圆心嘛
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202
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圆可以看作圆心那个点往外扩大
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加了一个半径的属性
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对不对
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问题是什么
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泛化的意思是一个
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集合的包含的意思
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意思是
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超类定义的或超类的行为
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定义的行为里面
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子类里面的对象
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任何一个都能够
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满足
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比如说，我们可以用三个点组成三角形
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那我们从圆的集合里面挑三个圆能组成三角形吗
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实际上这个就
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不太对了
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对不对
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那如果你水温是一种实数的话
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意味着什么
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实数里面的运算
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在水温对象里面挑出来
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都可以满足
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包括水温是实数
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人的身高
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也可以看作实数嘛
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那两个实数可以相加
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对不对
229
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得到另外一个实数
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那我从水温集合
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挑一个水温对象
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再从那个身高里面挑一个
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身高对象
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它们的值加起来能不能加
235
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236
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这个是不对的
237
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严格来说应该是什么
238
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应该是一个组合关系
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这个地方
240
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很多人画成泛化关系
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应该是组合关系，关联过来
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这个是
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这里
244
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组合
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00:09:35,770 --> 00:09:36,001
246
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这样更合理
247
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组合一个实数，对吧
248
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那水温这里就可以定义它的那个单位
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怎么在这里定义
250
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单位是
251
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是这个摄氏度
252
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对吧
253
00:09:54,030 --> 00:09:56,250
这个就是温度
254
00:09:57,850 --> 00:09:58,138
255
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就这样
256
00:09:59,292 --> 00:09:59,870
257
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好
258
00:10:00,744 --> 00:10:04,060
这个是定义了一个
259
00:10:06,320 --> 00:10:08,190
水温这个
260
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值类型，那怎么样把它变成
261
00:10:12,870 --> 00:10:14,600
水的属性呢
262
00:10:15,360 --> 00:10:16,771
那我们水在哪里
263
00:10:16,771 --> 00:10:17,577
水在这里
264
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对吧
265
00:10:17,980 --> 00:10:19,190
那这个怎么加
266
00:10:19,860 --> 00:10:21,335
因为这个没有办法
267
00:10:21,335 --> 00:10:22,810
你看，这里加
268
00:10:23,540 --> 00:10:24,970
加一个水温
269
00:10:26,090 --> 00:10:26,436
270
00:10:26,436 --> 00:10:27,821
这是属性
271
00:10:27,821 --> 00:10:29,900
然后呢，类型选
272
00:10:31,180 --> 00:10:32,660
选这个
273
00:10:33,660 --> 00:10:34,650
274
00:10:35,030 --> 00:10:36,580
选这个水温
275
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好
276
00:10:39,350 --> 00:10:40,640
假设是这样
277
00:10:41,070 --> 00:10:43,125
那这里确实有一个，问题是
278
00:10:43,125 --> 00:10:45,368
它没有成为它的值属性
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成为它的属性而已
280
00:10:47,050 --> 00:10:51,910
比如说，我们这里画一个它的块定义图
281
00:10:53,160 --> 00:10:55,151
添加水的块定义图
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00:10:55,151 --> 00:10:55,550
我们
283
00:10:57,990 --> 00:10:58,173
284
00:10:58,173 --> 00:10:59,640
我们在这里加
285
00:10:59,920 --> 00:11:00,840
块定义图
286
00:11:02,400 --> 00:11:02,735
287
00:11:02,735 --> 00:11:04,410
不是这个
288
00:11:04,740 --> 00:11:06,430
在项类型这里加
289
00:11:07,750 --> 00:11:08,995
加一个块定义图
290
00:11:08,995 --> 00:11:10,240
291
00:11:15,550 --> 00:11:15,732
292
00:11:15,732 --> 00:11:17,006
我们把水拖上去
293
00:11:17,006 --> 00:11:17,370
294
00:11:22,120 --> 00:11:25,120
然后我们再看它的那个
295
00:11:27,070 --> 00:11:27,318
296
00:11:27,318 --> 00:11:29,310
看它的属性等等
297
00:11:31,540 --> 00:11:34,066
你看，并没有值
298
00:11:34,066 --> 00:11:38,557
操作我们都放上来吧
299
00:11:38,557 --> 00:11:39,680
300
00:11:40,900 --> 00:11:41,890
放上来
301
00:11:43,530 --> 00:11:43,762
302
00:11:43,762 --> 00:11:45,390
并没有，并没有
303
00:11:52,350 --> 00:11:54,260
属性、操作
304
00:11:54,540 --> 00:11:56,420
并没有那个
305
00:11:57,170 --> 00:11:58,202
那怎么做
306
00:11:58,202 --> 00:11:59,853
变成它的值
307
00:11:59,853 --> 00:12:02,124
它这里要变成它的值
308
00:12:02,124 --> 00:12:03,570
这个怎么处理
309
00:12:04,540 --> 00:12:06,180
那这个的话，我们
310
00:12:07,250 --> 00:12:09,156
首先把刚才那个删掉
311
00:12:09,156 --> 00:12:10,640
这个删掉
312
00:12:15,570 --> 00:12:15,975
删掉
313
00:12:15,975 --> 00:12:17,599
然后我们怎么处理
314
00:12:17,599 --> 00:12:18,614
你看，右键点
315
00:12:18,614 --> 00:12:21,050
我们要在这个，把它拉下来
316
00:12:21,710 --> 00:12:23,740
我们要在这个地方
317
00:12:25,650 --> 00:12:27,520
添加一个
318
00:12:30,870 --> 00:12:31,867
内部块图
319
00:12:31,867 --> 00:12:34,260
给H2O添加一个这个
320
00:12:36,410 --> 00:12:36,782
好
321
00:12:36,782 --> 00:12:37,901
然后呢
322
00:12:37,901 --> 00:12:39,020
我们把
323
00:12:41,580 --> 00:12:43,090
这个拖上去
324
00:12:46,560 --> 00:12:46,760
325
00:12:46,760 --> 00:12:48,560
变成它的一个property
326
00:12:48,560 --> 00:12:49,760
变成一个属性
327
00:12:50,040 --> 00:12:51,110
这样来
328
00:12:54,750 --> 00:12:54,927
329
00:12:54,927 --> 00:12:56,704
这个时候我们回到这里
330
00:12:56,704 --> 00:12:57,060
你看
331
00:12:57,600 --> 00:12:57,820
332
00:12:57,820 --> 00:13:00,240
这里有一个值，水温
333
00:13:00,240 --> 00:13:00,680
对吧
334
00:13:01,430 --> 00:13:02,870
这时候会出来
335
00:13:04,480 --> 00:13:04,715
336
00:13:04,715 --> 00:13:06,130
这样来添加
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