#include <afx.h>#include <stdio.h>void GetCylc( unsigned int *lowPart, unsigned int *highPart ){    __asm {        cpuid         // 强制CPU开始新的周期        mov ecx, lowPart;        mov ebx, highPart;        rdtsc        mov [ecx], eax;        mov [ebx], edx;    }}unsigned int lowPart1, lowPart2, highPart;int main(){    char *s1 = "2o3i4jiojrewjeroiksopf";    GetCylc( &lowPart1, &highPart );    for(int i1=0;s1[i1]!=0;i1++)         printf("%c",s1[i1]);    printf("\n");    CString s2 = "2o3i4jiojrewjeroiksopf";    for(int i2=0;i2<s2.GetLength();i2++)         printf("%c",s2[i2]); // s2.GetAt(i2)    printf("\n");    GetCylc( &lowPart2, &highPart );    printf("finish time = lowPart2 - lowPart1 = %d\n",lowPart2 - lowPart1);    getchar();    return 0;}

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