文件输入输出

文件输入输出

#include "iostream"
#include "vector"
#include "string"
#include "algorithm"
#include "fstream"

using namespace std;
int main() {

    vector<std::string> c;
    string buff;
    string from = "in.txt";
    string dest = "out.txt";
    ifstream file;
    file.open(from);   //打开文件
    if (!file) {
        cout << "Error file\t" + from << endl;
        return -1;
    }
    while (getline(file, buff)) {  //读入文件
        c.push_back(buff);
    }
    ofstream out; //输出文件
    out.open(dest);
    for(auto s:c){
        out << s << endl;
    }

    return 0;
}