c++文件操作

#include <string>
#include <fstream>
int main()
{
	using namespace std;
    ifstream file1;
    char str[100];
    string str1;
    file1.open("abc.txt");
    while (!file1.eof())
    {
        file1.getline(str,100);
        getline(file1,str1);
        cout << str;
    }
	ofstream file;
	file.open("example.txt"); //或者构造函数直接ofstream file("example.txt");
	file << "shit";
	file.close();
	return 0;
}