創建結構體
#include<iostream>
using namespace std;
#include<string>
struct Godv
{
string name;
int age;
}gg3;//第三種創建方式
int main()
{
//第一種創建方式
Godv gg1;
gg1.age = 18;
gg1.name = "godv";
cout << "gg1 :" << gg1.age << gg1.name << endl;
//第二種創建方式
Godv gg2 = { "goda",19 };
cout << "gg2 :" << gg2.age << gg2.name << endl;
gg3.name = "godb";
gg3.age = 20;
cout << "gg3 :" << gg3.age << gg3.name << endl;
return 0;
}結構體陣列
跟一半陣列的使用一樣 這里僅規范一下撰寫風格
Godv ggArr[3] =
{
{"godv",18},
{"goda",19},
{"godb",20}
};結構體指標 ->
Godv gg4 = { "godc",21 };
Godv* p = &gg4;
cout << "gg4 :" << p->age << p->name << endl;利用const關鍵字防止誤操作
void readGodv(const Godv * p)
{
cout << "Godv :" << p->age << p->name << endl;
}最后附贈一個結構體的小demo
#include <iostream>
#include <string>
#include <ctime>
using namespace std;
struct Student
{
string name;
int score;
};
struct Teacher
{
int id;
string name;
Student stus[4];
};
void writeData(Teacher *p,int len)
{
//賦值
string nameSpace = "ABCD";
for (int i = 0; i < len; i++)
{
p->id = i;
p->name = "Tea_";
p->name += nameSpace[i];
Student* s = p->stus;
for (int j = 0; j < 4; j++)
{
s->name = "Stu_";
s->name += nameSpace[j];
// int random = rand() % 60; 0~59
int random = rand() % 61 + 40; //40~100
s->score = random;
s++;
}
p++;
}
}
void showData(Teacher* p, int len)
{
for (int i = 0; i < len; i++)
{
Student* s = p->stus;
cout << "老師：" << p->id << p->name << endl;
for (int j = 0; j < 4; j++)
{
cout << "\t學生：" << s->name << s->score << endl;
s++;
}
p++;
}
}
int main()
{
//亂數種子
srand((unsigned int)time(NULL));
Teacher tea[3];
int len = sizeof(tea) / sizeof(tea[0]);
writeData(tea, len);
showData(tea,len);
return 0;
}
轉載請註明出處，本文鏈接：https://www.uj5u.com/yidong/38185.html
標籤：其他
上一篇：VXlan深入解讀