由于某些原因,在主函数中创建对象后,析构函数立即被调用了,难道它不应该只在主函数结束时才被调用吗?谢谢。
代码:
#include <iostream>
#include <cstring>
#include <vector>
using namespace std;
class check{ //create class check
public:
string m_bank_name;
int m_check_number;
int m_branch_number;
char* m_check_sum;
check ( string bank_name, int check_number, int branch_number, char* check_sum){
int a_size = (strlen(check_sum)+1);
m_check_sum = new char[a_size]();
for (int i=0;i<a_size;i++)
{
m_check_sum[i]=check_sum[i];
}
m_bank_name= bank_name;
m_check_number = check_number;
m_branch_number = branch_number;
}
~check (){
delete [] m_check_sum;
cout<<"deleted!"<<endl;
}
};
void main(){
check ob1= check("poalim",809877,12,"4578");
cout<<ob1.m_check_sum<<endl;
getchar();
}
m_check_sum
的类型更改为std::string
(或者std::vector<char>
或其他具有值语义的类型),那么您就不需要一个析构函数,您也不需要遵循三大法则,您也不需要担心析构函数被过早或过于频繁地调用。 - Robᵩ