13周课外自主-项目6-读入文件

//******************file operator********************//******************read in file*********************  #include<iostream>#include<fstream>#include<cstdlib>using namespace std;int main(){int a,max=-9999,i;ifstream fin("f1.dat",ios::in);if(!fin){cerr<<"open error!"<<endl;exit(1);}else{cout<<"open correctly"<<endl;}while(fin>>a){if(a>max){max=a;}}fin.close();cout<<"the maximum in file is :"<<max<<endl;return 0;}

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