2,常用函数

3.CString与char []的相互转换

4,将NULL字节放入CString中

vc中最主要函数不易理解。

CString::CString(char *p)

{

       int n=strlen(p);

       m_data = new char[n+1];

       strcpy(m_data,p);

}

CString::CString(CString &other)

{

       int n=strlen(other.m_data);

       m_data = new char[n+1];

       strcpy(m_data,other.m_data);

}

CString& CString::operator = (CString& other)

{

       delete[] m_data;

       int n=strlen(other.m_data);

       m_data = new char[n+1];

       strcpy(m_data,other.m_data);