swab函数交换字符串中相邻两个字节;

void _swab( char *src, char *dest, int n );
     char *src: 要拷贝、转换的字符串,

     char *dest,转换后存储到dest所表示的字符串,

     int n要拷贝、转换的字节数;

所属库是 stdlib.h;

VC里面可以直接用;

void CMyswabView::OnDraw(CDC* pDC)
{
	CMyswabDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	// TODO: add draw code for native data here
	char* hello= "ABCDMN";
	char temp[32];
	memset(temp, 0, sizeof(temp));
	swab(hello, temp, strlen(hello));
	pDC->TextOut(50, 50, temp);
	swab(temp, temp, strlen(temp));
	pDC->TextOut(50, 80, temp);
}

字符串一开始是 ABCDMN,交换之后输出,再交换又输出;

C语言 swab 函数学习-LMLPHP

03-26 17:04