void string_erase(){
    char line[99] = "test\"1D11idd";
    std::string s;
    s=Form("%s",line);
    cout<<s<<endl;
    cout<<s.find("D")<<endl;
    int c;
    while((c = s.find_first_of("\"")) != string::npos){s.erase(c,1);}
    cout<<s<<endl;
    while((c = s.find_first_of("1")) != string::npos){s.erase(c,1);}
    cout<<s<<endl;
    return;
  }


------------------------------------------------------------
test"1D11idd
6
test1D11idd
testDidd