说struct没有名为'total‘的成员时出错

#include <iostream>

struct MyStruct {
    int value;
    float average;
};

int main() {
    MyStruct myStruct;
    myStruct.value = 10;
    myStruct.average = 5.5;
    
    std::cout << "Value: " << myStruct.value << std::endl;
    std::cout << "Average: " << myStruct.average << std::endl;
    std::cout << "Total: " << myStruct.total << std::endl;  // 错误：'total'成员不存在
    
    return 0;
}

#include <iostream>

struct MyStruct {
    int value;
    float average;
    int total;  // 添加名为'total'的成员
};

int main() {
    MyStruct myStruct;
    myStruct.value = 10;
    myStruct.average = 5.5;
    myStruct.total = 20;  // 给'total'成员赋值
    
    std::cout << "Value: " << myStruct.value << std::endl;
    std::cout << "Average: " << myStruct.average << std::endl;
    std::cout << "Total: " << myStruct.total << std::endl;  // 输出'total'成员的值
    
    return 0;
}