设typedef float REAL；则REAL是A 变量名 B 常量名 C 函数名 D 类型名

设typedef float REAL；则REAL是A 变量名 B 常量名 C 函数名 D 类型名 float FTSE EPRA/NAREIT Global Real Estate Index指数Equity Market Cap和Free Float Range c语言求改错#include typedef struct Birthday{short year;short month;short day;}Bir;typedef struct Student{char name[10];long ID;Bir birthday;float height;float weight;}STU;STU MyClass[5];void StudyStructMem(){printf( size Addr0 Addr1 Addr2 REAL real real real real C++复数相乘,新手求解答.已有一个复数类的声明部分,补充完成该类的实现并完成要求.class Complex{private:float real;float imag;public:Complex(float x=0,float y=0):real(x),imag(x);{}void show() ;};要求：(1) 在该类中 ANSI C的32个关键字的中文意思是什么autobreakcasecharconstcontinuedefaultdo double else enum extern float for goto if int long register return short signed static sizof struct switch typedef union unsigned void volatilewhile 在定义结构体时,结构体里含有该结构体类型的变量,struct student{char name[20];float score;struct student *next;};typedef struct DNode{ElemType data; //ElemType是之前已经定义的typedef char ElemType;struct LNode *next;}LinkLi typedef void (*funcptr)(void) typedef vector：iterator typedef void (*funcptr)(void) 麻烦帮我看看这个凸多边形最优三角剖分问题,出错了!#include#include#define N 30typedef struct //定义点的结构体{float x,y;}Point;class point{private:Point *v;public:float distance(Point i,Point j); //计算两点的距离flo C++错误之INTERNAL COMPILER ERROR源代码是：#includeusing namespace std;class complex{ float real,image;public: complex(float r=0,float i=0) {real=r;image=i;} void print(); friend complex operator+(complex a,complex b); friend complex operator- float (*p)(float)是什么意思