//

//  main.cpp

//  straightinsert_sortc++

//

//  Created by duanqibo on 2019/7/17.

//  Copyright © 2019年 duanqibo. All rights reserved.

//  直接插入排序 c++

#include <iostream>

#include <string>

#define N 5

using namespace std;

//定义学生类 

class student

{

private:

    int num;

    char name[20];

    char sex[20];

    int age;

public:

    student(){}; //无参数的构造函数

    //带参数的构造函数

    student(int n,char na[20],char se[2],int ag)

    {

        num=n;

        strcpy(name,na);

        strcpy(sex,se);

        age=ag;

    }

    void friend straightinsert_sort(student stud[],int n);   //友元函数

    void show();

};

//按姓名直接插入排序

void straightinsert_sort(student stud[],int n)

{

    int i,j;

    student temp;

    printf("\n\t按学生姓名排序\n\n");

    for(i=1;i<n;i++)

    {

        temp=stud[i];

        j=i-1;

        while((j>=0)&&(strcmp(temp.name,stud[j].name)<0))

        {

            stud[j+1]=stud[j];

            j--;

        }

        stud[j+1]=temp;

    }

}

void student::show()

{

    cout<<num<<'\t'<<name<<'\t'<<sex<<'\t'<<age<<'\t'<<endl;

}

int main(int argc, const char * argv[]) {

    // insert code here...

    student stu[N]={student(1001,"zhangsan","m",20),

        student(1002,"lisi","f",19),

        student(1003,"wangwu","m",18),

        student(1004,"zhaoliu","m",19),

        student(1005,"maqiang","m",20)

    };

    int len=sizeof(stu)/sizeof(stu[0]);

    straightinsert_sort(stu,len);

    cout<<"学号"<<'\t'<<"姓名"<<'\t'<<"性别"<<'\t'<<"年龄"<<endl;

    for(int i=0;i<len;i++)

    {

        stu[i].show();

        cout<<endl;

    }

    return 0;

}

运行结果：