舜发于畎亩之中,傅说举于版筑之间,胶鬲举于鱼盐之中,管夷吾举于士,孙叔敖举于海,百里奚举于市。故天将降大任于是人也,必先苦其心志,劳其筋骨,饿其体肤,空乏其身,行拂乱其所为,所以动心忍性,曾益其所不能。

下面是一段C++的学生管理系统源码,可直接运行在软件上。

#include<iostream>
#define N 20
using namespace std;
struct student{
int number;
int age;
int score;
char sex[8];
char name[20];};
struct student xx[N];
void main(){
int select;
select=1;
cout<<"                 姓名**  ***********学号  ***班"<<endl;
cout<<endl<<endl;
cout<<"                  ________________________________"<<endl;
cout<<"                  **                            **"<<endl;
cout<<"                  **欢迎进入学生管理系统**"<<endl;
cout<<"                  **                            **"<<endl;
cout<<"                  ________________________________"<<endl;
while(select){
          cout<<endl<<endl;
          cout<<"             请选择您的操作;"<<endl<<endl;
          cout<<"             1.输入学生信息;"<<endl;
          cout<<"             2.查找学生信息;"<<endl;
          cout<<"             3.修改学生信息;"<<endl;
          cout<<"             4.删除学生信息;"<<endl;
          cout<<"             5.增加学生信息;"<<endl;
          cout<<"             6.按学号小到大排序;"<<endl;
          cout<<"             7.对学生信息分页列表;"<<endl;
          cout<<"             0.退出;"<<endl;
          cout<<"             请选择按键(0~7)";
          cin>>select;
          cout<<endl;
             if(select>=0&&select<=7)
			 {
                switch (select)
				{
     case 1:           //输入学生信息
        int i;
        for( i=0;i<N;i++)
		{
           cout<<"请输入学号";
           cin>>xx[i].number;
           cout<<"请输入年龄";
           cin>>xx[i].age;
           cout<<"请输入成绩";
           cin>>xx[i].score;
           cout<<"请输入性别";
           cin>>xx[i].sex;
           cout<<"请输入姓名";
           cin>>xx[i].name;
           char tem;
           cout<<"是否退出,按n退出,其他任意键继续";
           cin>>tem;
           if(tem=='n')
           break;
           if(tem!='n') 
           continue;
		}
          break;
    case 2:             //查找学生信息
         int searchN;
         cout<<"请输入要查找的学号:";
         cin>>searchN;
         for(i=0;i<N;i++)
		 {
           if(searchN==xx[i].number)
		   {
         cout<<"学号:"<<xx[i].number;
         cout<<"\t年龄:"<<xx[i].age;
         cout<<"\t成绩:"<<xx[i].score;
         cout<<"\t性别:"<<xx[i].sex;
         cout<<"\t姓名:"<<xx[i].name<<endl;
		   }
		 }
         if(searchN==N)
         cout<<"没有找到";
         break;
    case 3:              //修改学生信息
       int moD;
       cout<<"请输入要修改的学号:"<<endl;
       cin>>moD;
       for(i=0;i<N;i++)
    {
       if(moD==xx[i].number)
    {  
          cout<<"请输入改正后的学生学号:"; 
          cin>>xx[i].number;
          cout<<"\t请输入改正后的学生年龄:";     
          cin>>xx[i].age;
          cout<<"\t请输入改正后的学生成绩:";
          cin>>xx[i].score;
          cout<<"\t请输入改正后的学生性别:"; 
          cin>>xx[i].sex;
          cout<<"\t请输入改正后的学生姓名:"<<endl; 
          cin>>xx[i].name;
          cout<<"修改成功"<<endl;
              break;
	   }
          else  
          cout<<"没有找到:"<<endl;   
	   }
           break;
    case 4:            //删除学生信息
        int delM;
        cout<<"请输入要删除的学号:"<<endl;
        cin>>delM;
        for(i=0;i<N;i++)
		{
           if(delM==xx[i].number)
		   { 
              for(int j=i;j<N;j++)
			  {
              xx[j]=xx[j+1]; 
			  }
                cout<<"已成功删除该学生信息."<<endl;  
                break; 
		   }
            if(delM!=xx[i].number)
               cout<<"没有该学生信息."<<endl;
             break;
		}
          break;
    case 5:            //增加学生信息
                for(i=0;i<N;i++)
    {
                   xx[i+1]=xx[i]; 
           cout<<"请输入要添加的学号";
           cin>>xx[i].number;
           cout<<"请输入要添加的年龄";
           cin>>xx[i].age;
           cout<<"请输入要添加的成绩";
           cin>>xx[i].score;
           cout<<"请输入要添加的性别";
           cin>>xx[i].sex;
           cout<<"请输入要添加的姓名";
           cin>>xx[i].name;
           cout<<"已成功增加该学生信息."<<endl;
       break;
             }
           break;
    case 6:             //按学号小到大排序
       struct student t;
       for(i=1;i<N;i++)
       for(int j=0;j<N-i;j++)
    { 
           if(xx[j].number>xx[j+1].number)
		   {
               t=xx[j];
               xx[j]=xx[j+1];
               xx[j+1]=t;
		   }
	   }
               for(i=0;i<N;i++)
			   {
                 cout<<"学号:"<<xx[i].number;
                 cout<<"\t年龄:"<<xx[i].age;
                 cout<<"\t成绩:"<<xx[i].score;
                 cout<<"\t性别:"<<xx[i].sex;
                 cout<<"\t姓名:"<<xx[i].name<<endl;
			   }
               break;
     case 7:            //对学生信息分页列表
                for(i=0;i<N;i=i+5){
                  for(int j=i;j<i+5;j++)
				  {
                        if(xx[j].number==0)
						{
                     break;
						}
                 cout<<"学号:"<<xx[j].number;
                 cout<<"\t年龄:"<<xx[j].age;
                 cout<<"\t成绩:"<<xx[j].score;
                 cout<<"\t性别:"<<xx[j].sex;
                 cout<<"\t姓名:"<<xx[j].name<<endl;
				  }
   
             cout<<"按数字'1'翻到下页,按数字'2'退出";
             int x;
             cin>>x;
             if(x==1)
             continue;
             if(x==2)
             break;
             if(x!=1&&x!=2)
             cout<<"输入错误"<<endl;
             break;
				}
     case 0:         //退出
       break;
         }
       } 
      else
	  {
              cout<<"输入有误"<<endl;
                continue;
	  }
  }
}

运行效果图如下:

Android实现学生管理 安卓学生管理系统源码_i++