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我正在尝试一个简单的程序,但出现错误。我不知道它是什么?在错误中显示为警告:打开文件时出错

我的程序

#include<opencv/cvaux.h>
#include<opencv/highgui.h>
#include<opencv/cxcore.h>

#include<stdio.h>
#include<stdlib.h>
int main( int argc, char** argv ) {
     cvNamedWindow( "Example2", CV_WINDOW_AUTOSIZE );
     CvCapture* capture = cvCreateFileCapture(" F://dc//dc++//Bryan Adams - Summer of 69 (Live).avi" );
     IplImage* frame;

     while(1) {
          frame = cvQueryFrame( capture );

          if( !frame ) break;

          cvShowImage( "Example2", frame );
          char c = cvWaitKey(33);

          if( c == 27 ) break;
     }
     cvReleaseCapture( &capture );
     cvDestroyWindow( "Example2" );
}
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