c语言课程设计___职工信息管理系统

C语言课程设计设计题目：职工信息管理系统设计目的当今时代是飞速发展的信息时代，在各行各业中离不开信息处理，这正是计算机被广泛应用于信息系统的环境。

计算机的最到好处的于利用它能够进行信息管理，使用计算机进行信息控制，不仅提高了工作效率，而且大大的提高了其安全性。

尤其对于复杂的信息管理，计算机能够充分发挥它的优越性。

计算机进行信息管理与信息管理系统的开发密切相关，系统的开发是系统管理的前提。

本系统就是为了管理好学生选课信息而设计的。

数据处理手工操作，工作量大，出错率高，出错后不易更改，造成了时间上的浪费。

基于这个问题，我认为有必要建立一个学生选课系统，使学生选课信息管理工作规范化、系统化、程序化，避免学生选课管理的随意性，提高信息处理的速度和准确性，能够及时、准确、有效的查询和修改选课情况。

二、题目说明：系统功能简介：系统以菜单方式工作1）职工信息录入（文件保存职工信息）2）输出职工信息、浏览职工信息3）查询职工信息4）根据员工号查找职工信息5）根据工资、年龄、性别对职工信息进行排序6）删除职工信息3. 设计实施：#include <stdio.h>#include <string.h>#include <stdlib.h>typedef struct Empk{int EmpNum; /* staff number */char EmpName[12]; /* name*/int Sex; /*sex 1- woman 2- man*/int Old; /* old*/int Cult; /*education background 1-specilist 2-doctor 3-others*/ int Salary; /*salary*/char Address[12]; /* address*/int Tell; /*telephone number*/}Emp;Emp emp[100];void open(){int i;FILE *fp;if((fp=fopen("wyl","rb+"))==NULL){printf("can not do it! Because of no file of information\n");exit(0);}for(i=0;i<100;i++){if(fread(&emp[i],sizeof(Emp),1,fp)==0){printf("Fail to output\n");exit(0);}}fclose(fp);}void close() /*跳出*/{int i;FILE *fp;if((fp=fopen("wyl","wr+"))==NULL){printf("can not do it!\n");exit(0);}for(i=0;i<100;i++)fwrite(&emp[i],sizeof(Emp),1,fp);fclose(fp);}void inputEmpInfo() /*输入信息*/{int i,k;for(i=0;i<100;i++){printf("Please enter the staff's :\nnumber:");scanf("%d",&emp[i].EmpNum);printf("\nname:");scanf("%s",emp[i].EmpName);printf("\nsex : 1- woman 2- man:");scanf("%d",&emp[i].Sex);printf("\nold:");scanf("%d",&emp[i].Old);printf("\nEducation background:1-specialist 2-doctor 3-others");scanf("%d",&emp[i].Cult);printf("\nsalary:");scanf("%d",&emp[i].Salary);printf("\naddress:");scanf("%s",emp[i].Address);printf("\ntellphone:");scanf("%d",&emp[i].Tell);printf("continue?(1.yes 2.no)");scanf("%d",&k);if(k==2) break;}close();}void reorder() /*修改*/{int i,s,j,k,l;Emp temp;open();printf("\nChoose which category would you want to use\n1---sex \n2---salary(from maximum to minimum) \n3--old (from maximum to minimum) \n ( enter the corresponding nember) \n)");scanf("%d",&i);switch(i){case 1:printf("\nchoose which sex do you want to inquire? 1--woman 2 --man "); scanf("%d",&s);for(j=0;emp[j].EmpNum!=0;j++){if(emp[j].Sex==s){printf(" number:%d\n",emp[j].EmpNum);printf("name:%s", emp[j].EmpName);printf("\nsex 1- woman 2- man:%d", emp[j].Sex);printf("\nold:%d", emp[j].Old);printf("\neducation background:%d\t\t\t 1-specialist 2-doctor 3-others ",emp[j].Cult);printf("\nsalary:%d", emp[j].Salary);printf("\naddress:%s", emp[j].Address);printf("\ntelephone nember :%d", emp[j].Tell);}}break;case 2:for(k=0;emp[k].EmpNum!=0;j++ ){for(l=k;emp[l].EmpNum!=0;l++){if(emp[l].Salary<emp[l+1].Salary){temp=emp[l];emp[l]=emp[l+1];emp[l+1]=temp;}}printf(" number:%d\n",emp[k].EmpNum);printf("name:%s",emp[k].EmpName);printf("\nsex 1- woman 2- man:%d",emp[k].Sex);printf("\nold:%d",emp[k].Old);printf("\neducation background:%d\t\t\t 1-specialist 2-doctor 3-others ",emp[k].Cult);printf("\nsalary:%d",emp[k].Salary);printf("\nadress:%s",emp[k].Address);printf("\ntelephone nember :%d",emp[k].Tell);}break;case 3:for(k=0;emp[k].EmpNum!=0;j++ ){for(l=k;emp[l].EmpNum!=0;l++){if(emp[l].Old<emp[l+1].Old){temp=emp[l];emp[l]=emp[l+1];emp[l+1]=temp;}}printf(" number:%d\n",emp[k].EmpNum);printf("name:%s",emp[k].EmpName);printf("\nsex 1- woman 2- man:%d",emp[k].Sex);printf("\nold:%d",emp[k].Old);printf("\neducation background:%d\t\t\t 1-specialist 2-doctor 3-others",emp[k].Cult);printf("\nsalary:%d",emp[k].Salary);printf("\naddress:%s",emp[k].Address);printf("\ntelephone nember :%d",emp[k].Tell);}break;}}void show(){int j;open();printf("\n-------------------------informations of sraffs---------------------------\n");for(j=0;emp[j].EmpNum!=0;j++){printf("number:%d\n",emp[j].EmpNum);printf("name:%s",emp[j].EmpName);printf("\nsex 1- woman 2- man:%d",emp[j].Sex);printf("\nold:%d",emp[j].Old);printf("\neducation background:%d 1-specialist 2-doctor 3-others ",emp[j].Cult);printf("\nsalary:%d",emp[j].Salary);printf("\nadress:%s",emp[j].Address);printf("\ntelephone nember :%d",emp[j].Tell);}}void deleteEmp(){int j,k,m=1,d,i=0;open();printf("Enter the number whose date you want to delete:\n");scanf("%d",&d);for(j=0;emp[j].EmpNum!=0;j++){if(emp[j].EmpNum==d){for(k=j;emp[j].EmpNum!=0;k++)emp[k]=emp[k+1];i++;}}if(i==0)printf("The staffs informations manage systerm has no date of the number your entered\n");close();printf("succeeed to delete\n");}void findByEmpName() /*查询*/{int j,i,k=0;open();printf("Please enter the number :\n");scanf("%d",&i);for(j=0;emp[j].EmpNum!=0;j++){if(emp[j].EmpNum==i){printf("\n-------------------------information of your want---------------------------\n");printf("number:%d\n",emp[j].EmpNum);printf("name:%s",emp[j].EmpName);printf("\nsex 1- woman 2- man:%d",emp[j].Sex);printf("\nold:%d",emp[j].Old);printf("\neducation background:%d\t\t\t\t 1-specialist 2-doctor 3-others",emp[j].Cult);printf("\nsalary:%d",emp[j].Salary);printf("\nadress:%s",emp[j].Address);printf("\ntelephone number:%d",emp[j].Tell);k++;}}if(k==0)printf("\nHave no date of the number\n");}void menu(){printf("\n--------------------------------------------------------------------------\n");printf("\n Wellcome to the staff manage styterm \n");printf("\n-------------------------------------------------------------------------\n");printf("Please choose number for what are you want to do:\n\n");printf("\n 1 ---- input: Complete inputing workers' information.");printf("\n 2 ---- reorder: Make the new order of the information.");printf("\n 3 ---- delete: Delete the information of the staff.");printf("\n 4 ---- output: Display all worker of information.");printf("\n 5 ---- inquire.");printf("\n 0 ---- exit\n");}void main(){int op,choice=1;while(choice==1){menu();printf("\nPlease enter your order:\n");scanf("%d",&op);switch(op){case 1: inputEmpInfo();break;case 2: reorder();break;case 3: deleteEmp();break;case 4: show();break;case 5: findByEmpName();break;case 0: {printf("Welcome to use worker management system, goodbye"); exit(0);}getchar();}printf("\n-------------------------------------------------------------------------\n");printf("\nWhether continue? Yes-1 No--2\n");scanf("%d",choice);}}。