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string Left(string str,int len)
{
if(str.Length < len)
throw new Exception("×Ö·û´®³¤¶È²»ÄÜÉÙÓÚ" + len);
else if(str.Length == len)
return str;
char[] cs = new char ......

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a =  0x9E3779B9;


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C/C++ code:

/* ¿ØÖÆÍøÂçÎļþ»Ø·Å */
typedef struct
{
DWORD dwSize;
char sDecoderIP[16]; /* DVR IPµØÖ· */
WORD wDecoderPort; /* ¶Ë¿ÚºÅ */
WORD wLoadMode; /* »Ø·ÅÏÂÔØÄ£Ê½ 1£­°´Ãû×Ö 2£­°´Ê±¼ä */
union
{
BYTE byFile[100]; /* »Ø·ÅµÄÎļþÃû */
struct
{
DWORD dwChannel;
BYTE ......

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inline unsigned __int64 GetCycleCount()
{
 __asm RDTSC
}
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inline unsigned __int64 GetCycleCount()
{
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