....isInstanceOf(D) //true (二) MRO与C3算法 面向对象语言如果支持了多继承的话,都会遇到著名的菱形问题(Diamond Problem)。假设存在一个如左图所示的继承关系,O中有一个方法foo,被A类和B类
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Diamond-Problem 钻石问题
Its author, Dr Michael Diamond, said it suggested that HSDD was a genuine physical problem.
执行人迈克尔。戴门博士指出,研究证明了HSDD真的是反映了身体上的问题。
And on Friday, the Oppenheimer family sold its 40% stake in diamond miner DE Beers to Anglo American, which some have described as part of a larger succession problem.
周五,奥本海默家族将其持有的钻石矿业公司德比尔斯(De Beers) 40%的股份出售给英美资源公司(Anglo American),据称后者涉及更为严重的继承问题。
There are many styles you can get diamond brooches in. The only problem is if you have enough cash for it.
有很多款式你可以得到钻石胸针英寸唯一的问题是:如果你有它足够的现金。
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