C++读取txt
读取txt#include<fstream>
#include<string>
#include<iostream>
using namespace std;
void main()
{undefined
ifstream in("main.txt");
string s;
while(getline(in,s))//着行读取数据并存于s中，直至数据全部读取
cout<<s.c_str()<<endl;
}
string get_KeyStr(const char* filename)
{
std::string str = "";
std::string temp;
string infile(filename);
ifstream fin;
fin.open(infile, ios::in);
int i = 0;
while (fin.good() && i < 3000)
{
getline(fin, temp);
str += temp; // += 已被重载
i++;
}
fin.close();
return str;
}
参考“
【1】https://blog.csdn.net/qing101hua/article/details/51925204/
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