c++读取整数

  • 将txt文件中的内容读取到整数变量中,txt文件内容:

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    760569222770 760569402420 179650 431 1
    3972158235210 3972158718970 483760 431 1
    5160568876430 5160568982420 105990 431 1
  • 使用istringstream类将读取的内容存储到整型变量并输出:

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    int (){
    ifstream infile("infdata.txt");
    if(!infile) { cout<<" Data error !"<<endl; return 0;}
    string s;
    long a, b, c;
    int d,e;
    string Str1, Str2;
    string Input;
    while(getline(infile,Input))
    {
    cout<<Input<<endl;
    istringstream iss(Input);
    while(iss>>a>>b>>c>>d>>e){
    cout<<a<<" "<<b<<" "<<c<<" "<<d<<" "<<e<<endl;
    }
    }

    return 1;
    }
  • 在root命令行下运行输出各个整数值