vc++中int,char*, float,double,CString之间的类型转换

vc中的int,char*, float,double,CString类型转换 

1. int <->CString
1)int ->CString
int n = 1;
CString str;
str.Format("%d",n);

2)CString->int
CString str = "1";

   int n = atoi(str.GetBuffer(0));
*注意的是：直接用atoi(str)的话，系统不回报错，但是会有警告，
因为这样是把string转成double型.

2. char* 与CString
1)char*->CString
char sz[128];
CString str;
str.Format("%s",sz);

2)CString -> char*
CString str;
char* sz = str.GetBuffer(0);

3. float<->CString
1)float->CString

float f = 0.0;
CString str;
str.Format("%f",f);

2)CString->float
CString str = "0.0";
float f = atof(str.GetBuffer(0))

4. CString和double的转换：
1)CString转double
CString str;
double b;
b=_tcstod(str,NULL);

2)double转CString
CString str;
double b;
str.Format(_T("%lf"),b)