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基本字符类型的转换
一、int <---> CString
int转CString:
int i=100;
CString str="";
str.Format("%d",i);
CString转int:
CString str="123";
int i;
i=atoi(str);
//i=_ttoi(str);
二、float <---> CString
float转CString:
float a=3.1415;
CString str="";
str.Format("%.2f",a); //保留小数点后两位
CString转float:
先将CString转char*,因为atof()的参数为char*型,atof()的返回值为double型,可直接强转为float型;
CString str="3.1415";
char* s;
s=str.GetBuffer(str.GetLength());
str.ReleaseBuffer();
float f;
f=atof(s);
三、double <---> CString
double转CString:
double d=3.1415;
CString str="";
str.Format("%.2lf",d);
CString转double:
CString str="3.1415";
char* s;
s=str.GetBuffer(str.GetLength());
str.ReleaseBuffer();
double d;
d=atof(s);
四、string <---> CString
string转CString:
CString str;
string s="hello";
str.Format("%s",s.c_str());
CString转string:
CString str="hello";
string s(str.GetBuffer());
五、char* <---> CString
char*转CString:
char sChar[]="hello";
CString str;
str.Format("%s",sChar);
AfxMessageBox(str);
CString转char*:
方法一:
CString str="hello";
char* s;
s=new char[str.GetLength()+1];
strcpy(s,str);
方法二:
CString str="hello";
char* s;
s=str.GetBuffer(str.GetLength());
str.ReleaseBuffer();
六、TCHAR* <---> CString
TCHAR*转CString:
TCHAR sChar[]="hello";
CString str;
str.Format("%s",sChar);
AfxMessageBox(str);
CString转TCHAR*:
方法一:
CString str="hello";
TCHAR* s=(LPTSTR)(LPCTSTR)str;
方法二:
CString str="hello";
TCHAR* s;
s=new TCHAR[str.GetLength()+1];
_tcscpy(s,str);
方法三:
CString str="hello";
TCHAR* s;
s=str.GetBuffer(str.GetLength());
str.ReleaseBuffer();
七、int <---> char*
int转char*:
int i=54321;
char ch[5];
itoa(i,ch,10); //10-十进制,2-二进制,8-八进制,16-十六进制
基本字符类型的转换