不同的构造方式(The different constructor ways)

 我写了一些小班，现在我看到了不同的方法来调用构造函数。 哪种方式正确？ （或者更好的方式） 
 
 
 
 SharedKeys.h 
 
 
#ifndef SHAREDKEYS_H
    #define SHAREDKEYS_H

    class SharedKeys
    {
    private:
        char keyCode;

    public:
        SharedKeys(char keycode)
        {
            keyCode = keycode;
        }
        ~SharedKeys() {}

        char getKeyCode() { return keyCode; };

    };

    #endif
 
 
 
 Main.cpp的 
 
 
 我的构造函数调用方式： 
 
SharedKeys* SK;
SK = new SharedKeys(*cstr); //Call contructor
 
 其他构造函数调用方式： 
 
// SharedKeys constructor
SharedKeys::SharedKeys(*cstr)
{
    keyCode = keycode;
}
 
 我愿意接受任何改进建议。 谢谢。 
 
 
 
 Main.cpp的 
 
 
 SK必须是这里的指针还是？ （此代码有效） 
 
SharedKeys* SK;

    vector<SharedKeys> StoreSharedKeys;

string str = x;
char *cstr = new char[str.length() + 1];
strcpy(cstr, str.c_str());

SK = new SharedKeys(*cstr);
StoreSharedKeys.push_back(*SK);
delete[] cstr;
 
 我理解正确吗？ 
 
cout << "Key: " <<  x << " loaded." << endl;
string str = x;
char *cstr = new char[str.length() + 1];
strcpy(cstr, str.c_str());

SharedKeys SK(*cstr);
StoreSharedKeys.push_back(SK);
delete[] cstr;
 
 如果我看到正确，那么这个构造函数调用是正确的方法。 所以我不必删除对象。 正确？ 

I have write little class, now i see different ways to call constructors. Which way is the correct way? (Or the better way)
 
 
 
SharedKeys.h
 
 
#ifndef SHAREDKEYS_H
    #define SHAREDKEYS_H

    class SharedKeys
    {
    private:
        char keyCode;

    public:
        SharedKeys(char keycode)
        {
            keyCode = keycode;
        }
        ~SharedKeys() {}

        char getKeyCode() { return keyCode; };

    };

    #endif
 
 
 
Main.cpp
 
 
My constructor call way:
 
SharedKeys* SK;
SK = new SharedKeys(*cstr); //Call contructor
 
Other constructor call way:
 
// SharedKeys constructor
SharedKeys::SharedKeys(*cstr)
{
    keyCode = keycode;
}
 
I am open to any suggestions for improvement. Thank you.
 
 
 
Main.cpp
 
 
SK must be a pointer here or? (this code works)
 
SharedKeys* SK;

    vector<SharedKeys> StoreSharedKeys;

string str = x;
char *cstr = new char[str.length() + 1];
strcpy(cstr, str.c_str());

SK = new SharedKeys(*cstr);
StoreSharedKeys.push_back(*SK);
delete[] cstr;
 
Did I understand you correctly?
 
cout << "Key: " <<  x << " loaded." << endl;
string str = x;
char *cstr = new char[str.length() + 1];
strcpy(cstr, str.c_str());

SharedKeys SK(*cstr);
StoreSharedKeys.push_back(SK);
delete[] cstr;
 
if im see that correct then this contructor call is the right way. So i dont must delete the objects. Correct?

原文：https://stackoverflow.com/questions/44923410