职工工作量统计系统源程序

#include "stdio.h"

#include "string.h"

#include "stdlib.h"

#define FILENAME "worker.bin"

#define N 20

struct worker

{

int number; /*工号*/

int counts; /*数量*/

int grade; /*等级*/

};

/*******************************************************

定义

*******************************************************/

void xinxi()

{

printf("\n+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\n");

printf("+ 职工工作量统计系统+\n");

printf("+ +\n");

printf("+ 1. 职工基本信息输入+\n");

printf("+ +\n");

printf("+ 2. 工作量输入+\n");

printf("+ +\n");

printf("+ 3. 按工作量排序+\n");

printf("+ +\n");

printf("+ 4. 按职工工号进行信息删除+\n");

printf("+ +\n");

printf("+ 5. 结束程序+\n");

printf("+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\n");

}

/*******************************************************

显示菜单

*******************************************************/

int readFromFile(struct worker w[])

{

FILE *fp=NULL;

int i=0;

fp=fopen(FILENAME,"rb"); /*打开文件*/

if(fp!=NULL)

{

while(!feof(fp)) /*从文件中读入学生*/

{

if(i>=N)

break;

if(fread(w+i,sizeof(worker),1,fp)==1)

i++;

}

fclose(fp);

}

return i;

}

/*******************************************************

信息显示到屏幕

*******************************************************/

int f(struct worker w[],int length)

{

int i=length;

while(i

{

printf("第%d个职工\n",i);

printf("\n");

printf("请你输入工号(以职工号为0结束):\n");/*输入工号*/

scanf("%d",&w[i].number);

if(w[i].number==0)

break;

printf("\n");

printf("\n");

printf("请你输入数量:\n");/*输入数量*/

scanf("%d",&w[i].counts);

printf("\n");

i++;

}

return i;

}

/*******************************************************

功能:输入职工基本信息

*******************************************************/ void input(struct worker w[],int length)

{

int i=1;

int number,counts;

printf("请输入工号:");

scanf("%d",&number);

while(number!=0)

{

printf("请输入完成数量:\n");

scanf("%d",&counts);

for(i=0;i

if(w[i].number==number)

{

w[i].counts+=counts;

break;

}

if(i>=length)

printf("工号不存在:\n");

printf("请输入工号:");

scanf("%d",&number);

}

}

/******************************************************* 功能:工作量输入并累加

*******************************************************/ void sortCounts(struct worker w[],int length)

{

int i=0,j=0,k=0;

struct worker s;

for(i=0;i

{

k=i;

for(j=i+1;j

if(w[j].counts>w[k].counts)

k=j;

/* 交换w[i] and w[k] */

s = w[k];

w[k] =w[i];

w[i] = s;

}

if(length>0)

w[0].grade =1;

for(i=1;i

if(w[i].counts==w[i-1].counts)

w[i].grade=w[i-1].grade;

else

w[i].grade=w[i-1].grade+1;

}

////////////////////////////////////////////////////////////////////////////////

/* 按工作量从大到小排序并标上名次*/

//////////////////////////////////////////////////////////////////////////////// void sortNumber(struct worker w[],int length)

{

int i=0;

int grade,count;

if(length>0)

{ while(i

{

count=0;

grade=w[i].grade;

printf("名次:%d ", grade);

printf(" 工作量:%d ",w[i].counts);

printf("%s","工号:");

while(i

{

if(grade==w[i].grade)

{

printf("%d ",w[i].number);

count++;

}

else

break;

i++;

}

printf("人数:%d\n",count);

}

}

else

printf("职工数据不存在!\n");

}

////////////////////////////////////////////////////////////////////////////////

/* 输出名次、同一名次的职工人数及他们的工号，姓名*/

//////////////////////////////////////////////////////////////////////////////// int delet(struct worker w[],int length,int stuNum)

{

int i,j;

char choice;

for(i=0;i

{

if(stuNum==w[i].number)

{

printf("%s","欲删除职工号为：");

printf("%d\n",w[i].number);

break;

}

}

if(i

{

printf("你确实要删除这个职工吗?(Y/N)");

scanf("%c",&choice);

if(choice=='Y'||choice=='y')

{

for(j=i;j

w[j]=w[j+1];

length--;

printf("删除成功!\n");

}

}

else

printf("\n指定的职工不存在!\n");

return length;

}

/********************************************************

按职工号删除职工信息

********************************************************/

void writeToFile(struct worker w[],int length)

{

FILE *fp=NULL;

int i=0;

fp=fopen(FILENAME,"wb");

if(fp==NULL)

{

printf("打开文件出错！\n");

exit(0);

}

for(i=0;i

fwrite(w+i,sizeof(worker),1,fp);

fclose(fp);

}

/********************************************************

结构体数组中的职工信息输出到文件

********************************************************/ void main ()

{

int choice;

struct worker w[N];

int NUM;char stuName[100];

int stuNum;

int length=0;

length=readFromFile(w);//读入

do

{ xinxi();

scanf("%d",&choice);

switch(choice)

{ case 1:

length=f(w,length);

break;

case 2:

input(w,length);

break;

case 3:

sortCounts(w,length);

sortNumber(w,length);

break;

case 4:

printf("请输入欲删除的职工号");

scanf("%d",&stuNum);

length=delet(w,length,stuNum);

break;

case 5:

{

writeToFile(w,length);//保存

printf("程序使用以结束\n");

exit(0);

}

default:

{

printf("输入有错误请重新输入:\n");

}

}

}while(1);

}