数学建模社区-数学中国
标题:
请教高手续。。。
[打印本页]
作者:
likaifly
时间:
2011-10-31 18:41
标题:
请教高手续。。。
#include <fstream>
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#include <iostream>
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#include <cstdlib>
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using namespace std;
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void copy(ifstream& in_stream, ofstream& out_stream)
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{
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char symbol;
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int b,i;
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int n;
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double s;
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// 外循环用于处理数据
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do
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{
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s=0;n=0;
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in_stream.get(symbol);
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// 此循环用于获得学生姓名
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while (true)
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{
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if(symbol >= '0' && symbol <= '9')
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{
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break;
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}
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out_stream.put(symbol);
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in_stream.get(symbol);
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}
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in_stream.putback(symbol);
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cout << "good.\n";
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// 此循环用于处理一行的十个成绩
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while (true)
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{
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in_stream >> b;
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s=s+b;
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n++;
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out_stream << b << ' ';
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in_stream.get(symbol);
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if(symbol=='\n') //如果遇到换行就跳出循环
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break;
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}
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cout << "very good.\n";
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s = s / n;
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out_stream << s<<endl;
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}while(!in_stream.eof());
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}
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int main()
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{
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ifstream in;
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ofstream out;
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in.open("d:\\data2.txt");
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if (in.fail())
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{
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cout << "Input file opening failed";
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exit(1);
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}
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out.open("d:\\data3.txt");
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if (out.fail())
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{
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cout << "Output file opening failed";
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exit(1);
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}
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cout << "ok.\n";
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copy(in, out);
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in.close();
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out.close();
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return 0;
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}
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