题解 | #数组类的拷贝构造函数#

#include<bits/stdc++.h>
using namespace std;
class Array{
	private:
		int n;//数组大小 
		int *a;//数组 
	public:

		Array(){
			cin>>n;
			a=new int [n];
			for (int i=0;i<n;i++) cin>>a[i];
		}
		~Array(){
			delete []a;
		}
		int getlen(){
			return n;
		}
		int get(int i){
			return a[i];
		}
		Array(const Array & s)
		{
			 int i;
			 delete []a;
			 a = new int[s.n];
			 n  = s.n;
			 for(int i = 0;i<n;i++)
			 a[i] = s.a[i];
		}
		// write your code here......
        
		void show(){
			for (int i=0;i<n;i++) cout<<a[i]<<' ';
		}
};
int main(){
	Array a;
	Array b=a; 
	b.show();
	return 0;
}