标签:return 声明 void def 结构体 type tst 存储 code
#include <cstdio> int main() { struct { int age; int height; } x, y = {29, 180}; // 结构的成员在内存中按照声明的顺序存储 x.age = 30; x.height = 170; return 0; }
#include <cstdio> int main() { struct struct_name { int age; int height; } x; // 同时声明了【结构标记struct_name】和【结构变量x】 struct struct_name y; // 纯C时必须加上struct struct_name z; // C++编译器则不必加struct return 0; }
#include <cstdio> int main() { typedef struct { int age; int height; } struct_name; struct_name x; return 0; }
传递指向结构的指针来代替传递结构可以避免生成副本。
#include <cstdio> #include <algorithm> #include <cstring> using namespace std; struct _Student { char* name; int age; int score; }; typedef struct _Student* Student; Student newStudent(char* name, int age, int score) { Student result = (Student) malloc(sizeof(struct _Student)); result->name = name; result->age = age; result->score = score; return result; } void printStudent(Student x) { printf("%s %d %d\n", x->name, x->age, x->score); } int main() { Student a, b; a = newStudent("asd", 19, 100); b = newStudent("dad", 12, 110); printStudent(a); printStudent(b); return 0; }
标签:return 声明 void def 结构体 type tst 存储 code
原文地址:https://www.cnblogs.com/xkxf/p/14436801.html