马克思共产主义论述4.doc

#include<>/*引用库函数*/#include<>#include<>/*字符串*/typedefstruct/*定义结构体数组*/{charnumber[10];/*学号*/charname[30];/*姓名*/intscore;/*成绩*/intage;/*年龄*/}Student;Studentstu[80];/*结构体数组变量*/intmenu_select()/*菜单函数*/{charc;do{system("cls");/*运行前清屏*/printf("\t\t**************学生信息管理系统**************\n");/*菜单*/printf("\t\t||\n");printf("\t\t||\n");printf("\t\t||\n");printf("\t\t||\n");printf("\t\t||\n");printf("\t\t||\n");printf("\t\t********************************************\n");printf("\t\t\t请您选择要实行的操作(1-7):");c=getchar();/*读入选择*/}while(c<'1'||c>'7');return(c-'0');/*返回选择*/}/*录入学生信息*/intInput(Studentstud[],intn)/*输入若干条记录*/{inti=0;charsign,x[10];/*x[10]为清除多余的数据所用*/while(sign!='n'&&sign!='N')/*判断*/{printf("\t\t\tstudent'snumber:");/*输入学生学号*/scanf("\t\t\t%s",stud[n+i].number);printf("\t\t\tstudent'sname:");/*输入学生姓名*/scanf("\t\t\t%s",stud[n+i].name);printf("\t\t\tstudent'sscore:");/*输入学生分数*/scanf("\t\t\t%d",&stud[n+i].score);printf("\t\t\tstudent'sage:");/*输入学生年龄*/scanf("\t\t\t%d",&stud[n+i].age);gets(x);printf("\t\t\t还要输入吗?(Y/N)");scanf("\t\t\t%c",&sign);/*输入判断*/i++;}return(n+i);}/*所有学生信息列表*/voidDisplay(Studentstud[],intn)/*显示所有记录*/{inti;printf("\t\t\t------------------------------------------\n");/*显示的格式*/printf("\t\t\tnumbernamescoreage\n");printf("\t\t\t------------------------------------------\n");for(i=1;i<n+1;i++)/*循环输入*/{printf("\t\t\t%-16s%-15s%d\n",stud[i-1].number,stud[i-1].name,stud[i-1].score,stud[i-1].age);if(i>=1&&i%10==0)/*每十个暂停*/{printf("\t\t\t-----------------------------------\n");/*格式*/printf("\t\t\t");system("pause");printf("\t\t\t-----------------------------------\n");/*格式*/}}printf("\t\t\t");system("pause");}/*删除一个学生的信息*/intDelete_a_record(Studentstud[],intn)/*删除一条记录*/{chars[20];inti=0,j;printf("\t\t\t输入待删除学生的姓名:");scanf("%s",s);while(strcmp(stud[i].name,s)!=0&&i<n)i++;/*查找判断*/if(i==n){printf("\t\t\t没有找到,请确认输入名字的正误!\n");/*返回失败信息*/return(n);}for(j=i;j<n-1;j++)/*删除操作*/{strcpy(stud[j].number