需要帮助,请指导我。如何解决如下所述的错误?
30:24:error:expected ')' before ',' 标记
在成员函数'int Address::compareTo(const Address&)'中:
41:26:error:'std::string' 没有名为 'compareTo' 的成员
#include<iostream>
using namespace std;
class Address {
int houseNumber;
string street;
int apartmentNumber;
string city;
string state;
string zipCode; // e.g., "47405-1234"
Address(int houseNumber,
string street,
// no apartmentNumber
string city,
string state,
string zipCode) {
this->houseNumber = houseNumber;
this->street = street;
this->city = city;
this->state = state;
this->zipCode = zipCode;
}
Address(int houseNumber,
string street,
int apartmentNumber,
string city,
string state,
string zipCode) {
this(houseNumber, street, city, state, zipCode);
this->apartmentNumber = apartmentNumber;
}
void print(void) {
std::cout << "Street: " << street << "\nCity: "
<< city << "\nState: " << state << "\nPostal Code: " << zipCode;
}
int compareTo(const Address &a) {
// same conventions as for Strings
return this->zipCode.compareTo(a);
}
};