c++ 读取文件内容存到string中

#include<iostream>#include<fstream>#include<string>using namespace std;int main(){string filename;        cin>>filename;string text;fstream in(filename.c_str());if(!in){cout<<"error"<<endl;}else{while(in>>text){cout<<text<<endl;}}return 0;     }

用到了fstream，抽空总结下这个库的用法吧，vs2010下跑通