int a,b;

char line[128];

FILE *fp;

if((fp=fopen("E:\\test.in","r"))==NULL)

{ printf("Open File Error!!\n");

    exit(1);

}

while(!feof(fp))

{ fgets(line,128,fp)

//fgets可以直接吃掉行尾的换行符，下次再次读入时不会有换行问题


       sscanf(line,”%d %d”,&a,&b);

       // any process for this line


}