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//

// Created by zing on 4/12/2020.

//

#include <iostream>

using namespace std;

class Adder {

public:

// 构造函数

Adder(int i = 0) {

total = i;

}

// 对外的接口

void addNum(int number) {

total += number;

}

// 对外的接口

int getTotal() {

return total;

};

private:

// 对外隐藏的数据

int total;

};

int main() {

Adder a;

a.addNum(10);

a.addNum(20);

a.addNum(30);

cout << "Total " << a.getTotal() << endl;

return 0;

}