关于strcmp函数

class User
{private:
int account; //银行账户
char Pword1[6];//密码
char Pword2[6];
string name; //姓名
float balance; // 余额
long long int ID; //身份证号码
string work_addr; // 单位
long long int tel; //电话号码
string address; //地址
public:
friend class Bank;
User(){}
User(int a,string n,float b,long long int id,string wa,long long int t,string ad):
account(a),name(n),balance(b),ID(id),work_addr(wa),tel(t),address(ad){}
};