#include<iostream>
using namespace std;
class CMyString
{
public:
CMyString(char *pData=NULL);
CMyString(CMyString &str);
CMyString& operator=(CMyString &str);
~CMyString(void);
void Print(){ cout << m_pData; }
private:
char* m_pData;
};
CMyString::CMyString(char *pData)
{
if (NULL == pData)
{
m_pData = NULL;
return;
}
else
{
unsigned int len = strlen(pData)+1;
m_pData = new char[len];
for (int i = 0; i < len; i++)
m_pData[i] = pData[i];
m_pData[len] = '\0';
}
}
CMyString::CMyString(CMyString &str)
{
unsigned int len = strlen(str.m_pData) + 1;
m_pData = new char[len];
for (int i = 0; i < len; i++)
m_pData[i] = str.m_pData[i];
m_pData[len] = '\0';
}
CMyString & CMyString::operator=(CMyString &str)
{
if (this == &str)
return *this;
else
{
unsigned int len = strlen(str.m_pData) + 1;
char *pTemp = new char[len];
for (int i = 0; i < len; i++)
pTemp[i] = str.m_pData[i];
pTemp[len] = '\0';
delete[]m_pData;//出错!!!不解
m_pData = pTemp;
}
return *this;
}
CMyString::~CMyString()
{
delete [] m_pData;
}
int main()
{
char c1[10] = "majunfu";
CMyString s1(c1);
CMyString s2 = s1;
s1 = s2;
s1.Print();
s2.Print();
return 0;
}