会python真的可以为所欲为0(回)
331天前
这里还有人吗1(回)
517天前这里还有人吗0(回)
517天前
每天面对着电脑屏幕，敲打键盘。我所面对的并不只是代码，而是一种生活方式。0(回)
741天前到处都是羊，不想上班0(回)
821天前
鸽子
0(回)
825天前#include <iostream> |
#include <string> |
#include <vector> |
using namespace std; |
class obj |
{ |
public: |
obj() |
{ |
m_data = new char[256]; |
printf("obj constructed\n"); |
} |
obj(const obj &other) |
{ |
size_t length = strlen(other.m_data); |
m_data = new char[length + 1]; |
Strcpy(m_data,other.m_data); |
} |
obj & operator = (const obj &other) |
{ |
if (this == &other) |
return *this; |
delete []m_data; |
size_t length = strlen(other.m_data); |
m_data = new char[length + 1]; |
Strcpy(m_data,other.m_data); |
return *this; |
} |
~obj() |
{ |
delete []m_data; |
} |
private: |
char* m_data; |
}; |
int main() |
{ |
vector<obj> oo; |
obj o; |
oo.push_back(o);//在此处调用拷贝构造函数 |
return 0; |
} |
