关于C++代码改正的问题

这是一个存折的问题，后两张图片是题目要求，我写的代码能运行，但是不太符合要求，请问我还该怎么改动

修改如下，供参考：

#include <iostream>
using namespace std;
class FDAccount {
private:
    char* accounts; //账号
    char* name;     //账户名称
    double balance; //存款余额
    int    term;    //存款期限
protected:
    double interest_rate;//存款利率
public:
    FDAccount(char* ID, char* depositor, double amount, int period, double rate)
    {
        if (amount < 0 || rate < 0)
            cout << "数据不正确" << endl;
        else
            accounts = ID, name = depositor, balance = amount, term = period, interest_rate = rate;
    }
    double fetch(char* ID, char* depositor, double amount)
    {
        cout << "Account:" << (char*)ID << endl << "Name:" << (char*)depositor << endl << "Amount:" << amount << endl;
        balance = balance - amount;
        return balance;
    }
    void update()
    {
        balance = balance + balance * (interest_rate / 100.0) * (term / 12.0);
    }
    void show()
    {
        cout << "Account:" << accounts << endl << "Name:" << name << endl << "Term:" << term << endl;
        cout << "Interest_rate:" << interest_rate << endl << "Balance:" << balance << endl;
    }
};
int main()
{
    char s1[10], s2[20];
    double c, d, e = 3000.00;
    int  f;
    cout << "请输入账号" << endl;
    cin >> s1;
    cout << "请输入账户名称" << endl;
    cin >> s2;
    cout << "请输入存款期限" << endl;
    cin >> f;
    cout << "请输入存款利率" << endl;
    cin >> c;
    cout << "请输入存款金额" << endl;
    cin >> d;
    FDAccount deporitor(s1, s2, d, f, c);
    deporitor.show();
    deporitor.update();
    deporitor.show();
    deporitor.fetch(s1,s2,500);
    deporitor.show();
    return 0;
}

为什么show时冒号两边的空格不统一？

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