C++字符串之间的相互转换

1. CString 转 char[]

CString str;

char ch[];

<1>: strcpy(ch, str);

<2>: sprintf(ch, "%s", str);

2. char[] 转 CString

CString str;

char ch[];

str = ch;

3. CString 转 char*

CString str;

char* pch = new char[];

<1>: pch = str.GetBuffer(str.GetLength());

<2>: pch = (LPTSTR)(LPCTSTR)str;

4. char* 转 CString

CString str;

char* pch =  new char[];

<1>: str = pch;

<2>: str.Format("%s", pch);

5. CString 转 string

string s;

CString str;

s = str;

6. string 转 CString

string s;

CString str;

str = s.c_str();

7. char[] 转 string

char ch[];

string s;

s = ch;

8. string 转char[]

string s;

char ch[];

<1>: strcpy(ch, s.c_str());

<2>: sprintf(ch, "%s", s.c_str());

9. CString 转 float

CString str;

float f;

f = atof(str);

10. float 转 CString

float f;

CString str;

str.Format("%.5f", f );  //数字5代表小数点后有五位有效数字

11. CString 转 int

CString str;

int i;

i = atoi(str);

12. int 转 CString

CString str;

int i;

str.Format("%d", i);

注：持续更新