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Help! Help! Help! #include <iostream> #include <fstream> using namespace std; int main() {  int grade, sum = 0;    ifstream infile;  ofstream outfile;  infile.open("H:text1");  outfile.open("H:text2.txt");  infile >> grade;  while (infile)  {   sum = sum + grade;   infile >> grade;     }  outfile << "sum = " << sum;  infile.close();  outfile.close();  return 0; } ÔËÐл·¾³£ºcpu 2.4GHZ, Rom 256MB windows xp + Visual C++ 6.0 ÎÒÏëͨ¹ý¶ÁÈëÎļþtext1ÖеÄÊý¾Ý,±ÈÈç ˵1£¬2£¬3 £¬ÊµÏÖÇóºÍµÄ¹¦ÄÜ£¬È»ºó Êä³öµ½text2 ÖУ¨sum = 6£©£¬¿ÉÊÇ ÔËÐнá¹ûÈ´ÊÇsum = 0,ÇëÎÊÊÇÄÄÀï³öÏÖµÄÎÊÌ⣬Âé·³½â´ðһϡ£    Êղؠ  ·ÖÏí   ¶¥(0)

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#include <iostream> #include <fstream> using namespace std; int main() { int grade=0,sum = 0; ifstream infile; ofstream outfile; infile.open("c:\\text1.txt"); outfile.open("c:\\text2.txt"); infile >> grade; while (infile) {   sum = sum + grade;   infile >> grade;    } outfile << "sum = " << sum; infile.close(); outfile.close(); return 0; } ¸Õ¿ªÊ¼Ñ§Ï°Ð´³ÌÐòҪעÒ⣺ 1¡¢±äÁ¿ÉùÃ÷ʱ×îºÃ³õʼ»¯ÀýÈçÉÏÃæµÄgrade¡£ 2¡¢("c:\\text1.txt");·¾¶ÔÚvcÖÐÒòΪתÒå×Ö·ûÒªÕâô±íʾ¡£

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