c++读取txt文件数据

c++读取txt文件数据
#include <iostream>
#include <string>
#include <fstream>
using namespace std;

const int Money = 10000;
struct Patrons
{
    string name;
    double money;
};

int main()
{    
   ifstream inFile; inFile.open(
"demo6_9.txt"); if(!inFile.is_open()) { cout<<"could not open the file \"demo6_9\"\n"; cout<<"program terminating!\n"; exit(EXIT_FAILURE); } int num; inFile>>num; cout<<"the number of Patrons is :"<<num<<"."<<endl; inFile.get();//读取换行符 // string name; // int money; Patrons *pt = new Patrons[num]; if(inFile.is_open()) { int i; for(i=0;i<num;i++) { // inFile>>name; // inFile>>money; // pt[i].name = name; // pt[i].money = money; getline(inFile,pt[i].name); //读取一行输入 (inFile>>pt[i].money).get(); } int k=0; cout<<"Grand Patrons:"<<endl; for(i=0;i<num;i++) if(pt[i].money >= Money) { cout<<pt[i].name<<" "<<pt[i].money<<endl; k++; } if(k==0) cout<<"none.\n"; cout<<"Patrons:"<<endl; if(k==num) cout<<"none.\n"; else { for(i=0;i<num;i++) if(pt[i].money < Money) cout<<pt[i].name<<" "<<pt[i].money<<endl; } } inFile.close(); delete [] pt; system("pause"); return 0; }
c++读取txt文件数据
我的TXT格式是
4
Sam Stone
2000
Freida Flass
100500
Tammy Tubbs
5000
Rich Raptor
55000
至于你说的列确定,行不确定,你也可以用类似cin的方法读取

c++读取txt文件数据

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