c语言结构体元素遍历方法,有没有办法在C中循环使用不同类型元素的结构体？...

我不知道你想要实现什么,但是您可以使用

X-Macros并让预处理器对结构的所有字段进行迭代：

//--- first describe the structure, the fields, their types and how to print them

#define X_FIELDS \

X(int, field1, "%d") \

X(int, field2, "%d") \

X(char, field3, "%c") \

X(char *, field4, "%s")

//--- define the structure, the X macro will be expanded once per field

typedef struct {

#define X(type, name, format) type name;

X_FIELDS

#undef X

} mystruct;

void iterate(mystruct *aStruct)

{

//--- "iterate" over all the fields of the structure

#define X(type, name, format) \

printf("mystruct.%s is "format"\n", #name, aStruct->name);

X_FIELDS

#undef X

}

//--- demonstrate

int main(int ac, char**av)

{

mystruct a = { 0, 1, 'a', "hello"};

iterate(&a);

return 0;

}

这将打印：

mystruct.field1 is 0

mystruct.field2 is 1

mystruct.field3 is a

mystruct.field4 is hello

您还可以在X_FIELDS中添加要调用的函数的名称…