CString::Mid

  • 项目

CStringMid(intnFirst**)const;**
throw(CMemoryException);

CStringMid(intnFirst**,intnCount)const;**
throw(CMemoryException);

Return Value

A CString object that contains a copy of the specified range of characters. Note that the returned CString object may be empty.

Parameters

nFirst

The zero-based index of the first character in this CString object that is to be included in the extracted substring.

nCount

The number of characters to extract from this CString object. If this parameter is not supplied, then the remainder of the string is extracted.

Remarks

Extracts a substring of length nCount characters from this CString object, starting at position nFirst (zero-based). The function returns a copy of the extracted substring. Mid is similar to the Basic MID$ function (except that indexes are zero-based).

For multibyte character sets (MBCS), nCount refers to each 8-bit character; that is, a lead and trail byte in one multibyte character are counted as two characters.

Example

The following example demonstrates the use of CString::Mid.

// example for CString::Mid
CString s( _T("abcdef") );
ASSERT( s.Mid( 2, 3 ) == _T("cde") );

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See Also   CString::Left, CString::Right