选择其成员的随机结构(Choosing a random struct by its members)

选择其成员的随机结构(Choosing a random struct by its members)

我必须在C中为周期表建模一个教育软件项目（它基本上是一个测验）。

我已经创建了一个结构并声明了所有元素。 现在我必须编写一个随机选择一个元素的函数。

这是我的结构：

typedef struct{ char name[15]; char shortname[3]; int group; int period; }element; element hydrogen={"hydrogen", "H", 1, 1}, helium={"Helium", "He", ...

我已经尝试将它们组合在一个数组中，然后生成一个随机索引：

element elements[118]; elements[1] = {"hydrogen", "H", 1, 1};

但那只是给了我错误:(

有任何想法吗？

I have to model the periodic table in C, for an educational software project (It's basically a quiz).

I already created a struct and declared all the elements. Now I have to write a function that chooses one element randomly.

This is my struct:

typedef struct{ char name[15]; char shortname[3]; int group; int period; }element; element hydrogen={"hydrogen", "H", 1, 1}, helium={"Helium", "He", ...

I already tried to combine them in an array, to then generate a random index:

element elements[118]; elements[1] = {"hydrogen", "H", 1, 1};

but that just gave me errors :(

Any ideas?

最满意答案

这种方法应该有效。 设置一个结构数组，然后取index = rand（）％118。你设置结构列表的语法就是问题所在。 尝试

struct element elements[118] = { {"hydrogen", "H", 1, 1}, {"helium", "He", 2, 4}, ... etc };

The approach should work. Set up an array of structs, then take index = rand() % 118. Your syntax for seting up the list of structures is the problem. Try

struct element elements[118] = { {"hydrogen", "H", 1, 1}, {"helium", "He", 2, 4}, ... etc };