Question

有人能帮助我吗？

我无法解决的两个错误：

初始化程序太多而且
类型之前＆＃39; date＆＃39;

这是一个标题文件book.h

struct date
{

    int date;  >>>>the type(s preceding'date'),don't know what is this??

    int month;

    int year;
};

typedef struct {

    char book_name[51];

    char book_ID[7];

    char author[31];

    char publisher[31];

    struct date book_date;

    double price;


}BOOK;

这是.cpp个文件

void main()

{

    int i;

    BOOK bk_detail[10] ={

        {"Harry Potter","B1001","JK ROWLING","Little Brown",{30,6,1997},56.00},

        {"Me Before You","B1002","Jojo Moyer","Penguin Group",{3,6,2004},58.00},

        {"Game Of Throne","B1003","George RR Martin","Snow Dany",{4,4,1990},69.00},

        {"Maze Runner","B1004","James Dashner","Chicken Mouse",{3,3,2003},55.00},

        {"Papertown","B1005","John Green","Dutton Penguin",{16,8,2008},47.00},

        {"Twilight","B1006","Stephenie Meyer","Little Brown",{12,7,2005},56.00},

        {"The Hunger Game","B1007","Suzanne Collins","Scholastic Corporation",{3,9,2006},69.00},

        {"No Man Sky","B1008","Nathan Stuart","Littlefinger Group",{4,8,2014},55.00},

        {"Resist the Temptation","B1009","Jon Snow","The Night Watch",{8,9,1998},69.00},

        {"To Code","B1010","Daenerys Targaryen","Dragons BB",{5,3,1997},56.00}

    }; 
    FILE*books_detail=fopen("book_detail.bin","wb");
    if (books_detail == NULL)
    {
        printf("ERROR...\n");
        exit(-1);
    }

    fwrite(&bk_detail,sizeof(bk_detail[0]),10,books_detail);

    fclose(books_detail);

}

我已经按照教程步骤进行了操作，但看起来它仍然有错误，为什么还有这两个错误。（PS，我是编码的新手。）

Answer 1

第二个错误是第一个错误的结果。给出的第一个错误是：

 struct date {

名为date的成员是构造函数 - 构造函数不能以类型开头。换句话说，你不能拥有一个与结构或类同名的成员变量。

修复方法是将其更改为：

      int day_of_month;

修改：除cpp.sh完全满意之外：

// Example program

struct Foo
{
    int Foo;
};

int main()
{
    Foo foo;
    foo.Foo = 1;

    return foo.Foo;
}

（具有相同的＆＃34;问题＆＃34;）。

我强烈建议您使用char而不是使用std::string数组。它使很多代码很多更简单。

Answer 2

问题是你的结构名为“date”，它有一个名为“date”的成员变量。编译器抛出错误，因为它们的名称相同。

考虑到这一点的一个简单方法是，如果你做了一种

int int;

由于int是一个类型，因此不能将变量命名为与类型相同的名称。

结构和数组的初始化程序太多了

2 个答案: