求高人指点！！！error LNK2001: unresolved external symbol "public: void __thiscall

Posted 2023-02-14

错误是（1）error LNK2001: unresolved external symbol "public: void __thiscall SavingsAccount::dispAnAccount(void)" (?dispAnAccount@SavingsAccount@@QAEXXZ)
（2）fatal error LNK1120: 1 unresolved externals
#include<iostream>
#include<cmath>
#include<iomanip>
#include<string>
using namespace std;
.........
public:
//构造函数
SavingsAccount(int date=1,int id=10000);
int getaccNumber()return accNumber;
string getaccName()return accName;
string getaccPWD()return accPWD;
double getBalance()return balance;
void openAccount(int); //开户
void deposit(int date,double amount);//存款
void withdraw(int date,double amount);//取款
void settle(int date);
//结算利息，每年1月1日调用一次该函数
void dispAnAccount();//显示账户信息
;
SavingsAccount::SavingsAccount(int date,int id)
:accNumber(id),balance(0),lastDate(date),accumulation(0)

accName="admin";
accPWD="admin";
flag=0;

void SavingsAccount::record(int date,double amount)

accumulation=accumulate(date);
lastDate=date;
amount=floor(amount*100+0.5)/100;
//保留小数点后两位
balance+=amount;
cout<<date<<"\t#"<<accNumber<<"\t"<<amount<<"\t"<<balance<<endl;

void SavingsAccount::deposit(int date,double amount)
record(date,amount);

void SavingsAccount::withdraw(int date,double amount)
record(date,-amount);

void SavingsAccount::settle(int date)//计算年息
double interest=accumulate(date)*RATE/365;
record(date,interest);
accumulation=0;

SavingsAccount类的dispAnAccount函数，只有在类中的声明，没有找到具体的函数实现。

void SavingsAccount::dispAnAccount()//显示账户信息

增加一个这样的代码就好了。

参考技术A http://www.douban.com/note/65638800/