我正在编写一个周期表程序来帮助我理解课程。 我希望能够通过几个属性来显示/排序元素,例如它是金属,非金属还是非金属。我不确定要做什么,但我的第一个猜测是创建一个对象数组;但是,我在使用构造函数设置值时遇到了问题。
类
class Element{
public:
enum class groupNames { HYDROGEN, ALKALI, ALKALINE, GROUP_THREE, GROUP_FOUR, GROUP_FIVE,
GROUP_SIX, GROUP_SEVEN, GROUP_EIGHT, GROUP_NINE, GROUP_TEN,
GROUP_ELEVEN,GROUP_TWELVE, GROUP_THIRTEEN, GROUP_FOURTEEN,
GROUP_FIFTEEN, CHALCOGEN, HALOGEN, NOBLE_GAS
};
enum class orbitals {ORBITAL_NOTSET, S_BLOCK, P_BLOCK, D_BLOCK, F_BLOCK};
enum class metal_status {METAL = 0, METALLOID, NONMETAL};
Element();
Element(int aNumber, int pNumber,groupNames groupnames, metal_status MetalStatus, orbitals Orbital,std::string eName, std::string eSybol);
void displayProperties();
private:
groupNames groupNumber;
orbitals orbital;
metal_status metalStatus;
std::string elementSymbol;
std::string elementName;
int atomicNumber;
int periodNumber;
};
Element::Element()
{
atomicNumber = 0;
periodNumber = 0;
groupNumber = groupNames::HYDROGEN;
metalStatus = metal_status::METAL;
orbital = orbitals::ORBITAL_NOTSET;
elementName = "NULL";
elementSymbol = "NULL";
}
Element::Element(int aNumber, int pNumber,groupNames groupnames, metal_status MetalStatus, orbitals Orbital,std::string eName, std::string eSymbol)
{
groupNumber = groupnames;
metalStatus = MetalStatus;
orbital = Orbital;
atomicNumber = aNumber;
periodNumber = pNumber;
elementName = eName;
elementSymbol = eSymbol;
}
void Element::displayProperties()
{
std::cout << elementName << ", " << elementSymbol << "\n"
<< "Group Number: " << as_integer(groupNumber) << "\n"
<< "Metal Status: " << as_integer(metalStatus) << "\n"
<< "Orbital: " << as_integer(orbital) << "\n"
<< "Atomic Number: "<< atomicNumber << "\n"
<< "Period Number: "<< periodNumber;
}
以前的初始化方法 //工作正常,问题是我无法按属性排序
Element Hydrogen(1,1, Element::groupNames::HYDROGEN, Element::metal_status::NONMETAL, Element::orbitals::S_BLOCK, "Hydrogen", "H");
Element Helium(2, 1, Element::groupNames::NOBLE_GAS, Element::metal_status::NONMETAL, Element::orbitals::S_BLOCK, "Helium", "He");
std :: array方法 - 问题!
std::array<Element, 115> Elements =
{
Elements[0],
Elements[1](1,1, Element::groupNames::HYDROGEN, Element::metal_status::NONMETAL, Element::orbitals::S_BLOCK, "Hydrogen", "H")
};
错误:错误:无法调用'(std :: array :: value_type {aka Element})(int,int,Element :: groupNames, Element :: metal_status,Element :: orbitals,const char [9],const char [2])'
答案 0 :(得分:2)
你可能需要两套大括号(我正在拉出我的头发,弄清楚clang在抱怨什么。)我建议统一初始化。另外,我为您的枚举添加Element
作为资格,并将其更改为与您的班级定义中的名称相匹配。
std::array<Element, 115> Elements =
{{
{},
{1,1, Element::groupNames::HYDROGEN, Element::metal_status::NONMETAL, Element::orbitals::S_ORBITAL, "Hydrogen", "H"}
}};
或者,您可以尝试:
std::array<Element, 115> Elements
{
Element(),
Element(1,1, Element::groupNames::HYDROGEN, Element::metal_status::NONMETAL, Element::orbitals::S_ORBITAL, "Hydrogen", "H")
};