菜鸟的C++出错了，求解答

Question

#include "Calculator.h"
#include
#include

Calculator::Calculator(double i, double j, char *prt) {
operand1 = i;
operand1 = j;
operation = new char[20];
strcpy_s(operation, 10, prt);
};

double Calculator::doOperation() {
if (strcmp(operation, "div") == 0) {
if (operand2 == 0) {
std::cout << "operand2 can't be 0" << std::endl;
return 1;
}
return operand1 / operand2;
}
else if(strcmp(operation, "minus") == 0)
return operand1 - operand2;
else if(strcmp(operation, "multi") == 0)
return operand1 * operand2;
else if(strcmp(operation, "plus") == 0)
return operand1 + operand2;
};

using namespace std;
int main(int argc, char *argv[]) {

if (argc != 4) {

    cout << "You must give 4 arguments!" << endl;

    return 1;
}

double op1, op2,m;

char *opcode;

op1 = atof(argv[2]);

op2 = atof(argv[3]);

opcode = argv[1];

Calculator one(op1, op2, opcode);

m = one.doOperation();

cout << m << endl;

return 0;

}

include的部分显示不出来，其实是没问题的，这个编辑器真难用

Answer 1

在构造函数中operand2没有接收到值。

Calculator::Calculator(double i, double j, char *prt) {
operand1 = i;  //这里是operand1
operand1 = j;  //这里也是operand1
operation = new char[20];
strcpy_s(operation, 10, prt);
};

类似这样的错误，编译器不会报，小心一些就好了。

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