C#中的结构

Question

我在我的程序中使用了一个结构如下:

public struct chromo_typ
{
        public string   bits;  
        public float    fitness;

        chromo_typ(string bts, float ftns)
        {
            bits = bts;
            fitness = ftns;
        }
};

我正在使用结构中定义的构造函数,即我的main()中的chromo_typ(string bts,float ftns).我的main()包含以下代码:

chromo_typ[] temp = new chromo_typ[VM_Placement.AlgorithmParameters.pop_size];

                    chromo_typ ct = new chromo_typ();

                    int cPop = 0;

                    //loop until we have created POP_SIZE new chromosomes
                    while (cPop < VM_Placement.AlgorithmParameters.pop_size)
                    {
                        // we are going to create the new population by grabbing members of the old population
                        // two at a time via roulette wheel selection.
                        string offspring1 = p.Roulette(TotalFitness, Population);
                        string offspring2 = p.Roulette(TotalFitness, Population);

                        //add crossover dependent on the crossover rate
                        p.Crossover(offspring1, offspring2);

                        //now mutate dependent on the mutation rate
                        p.Mutate(offspring1);
                        p.Mutate(offspring2);

                        //add these offspring to the new population. (assigning zero as their
                        //fitness scores)
                        temp[cPop++] = ct.chromo_typ(offspring1, 0.0f);
                        temp[cPop++] = ct.chromo_typ(offspring2, 0.0f);

                    }//end loop

我收到以下错误temp[cPop++] = ct.chromo_typ(offspring1, 0.0f);和temp[cPop++] = ct.chromo_typ(offspring2, 0.0f);

错误: 'VM_Placement.Program.chromo_typ' does not contain a definition for 'chromo_typ' and no extension method 'chromo_typ' accepting a first argument of type 'VM_Placement.Program.chromo_typ' could be found (are you missing a using directive or an assembly reference?)

我使用结构不正确吗？我该如何解决这个问题？

Answer 1

在这种情况下,chromo_typ是构造函数,但您将其作为实例方法调用.构造函数用于构造对象,即

temp[cPop++] = new chromo_typ(arg1, arg2);

它不是一种可以调用类型实例的方法.

在旁注中,在C#中命名类型的规范方法是使用大写字母开头并使用驼峰大小写,即,

public struct ChromoTyp { }

当然,这不是一个规则,但遵循社区已经使用的模式通常是一个好主意.