sizeof()功能之二维数组

sizeof() 功能：http://www.cnblogs.com/chengxin1982/archive/2009/01/13/1374575.html

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	BYTE carddata[4][17] = {
		{0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0A,0x0B,0x0C,0x0D},
		{0x11,0x12,0x13,0x14,0x15,0x16,0x17,0x18,0x19,0x1A,0x1B,0x1C,0x1D},
		{0x21,0x22,0x23,0x24,0x25,0x26,0x27,0x28,0x29,0x2A,0x2B,0x2C,0x2D},
		{0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39,0x3A,0x3B,0x3C,0x3D},
	};
	ZeroMemory(carddata[3], sizeof(*carddata));<span style="white-space:pre">	</span>// 第四行清零
	ZeroMemory(carddata[2], sizeof(carddata[2]));<span style="white-space:pre">	</span>//<span style="font-family: Arial, Helvetica, sans-serif;"> 第三行清零</span>
	ZeroMemory(carddata, sizeof(carddata));<span style="white-space:pre">		</span>// 所有行清零