diff --git a/worker.txt b/worker.txt
new file mode 100644
index 0000000..a3a548b
Binary files /dev/null and b/worker.txt differ
diff --git a/职工工作量统计.c b/职工工作量统计.c
new file mode 100644
index 0000000..253a1aa
--- /dev/null
+++ b/职工工作量统计.c
@@ -0,0 +1,278 @@
+#include "stdio.h"
+#include "stdlib.h"
+#define FILENAME "worker.txt"
+#define N 20
+/*******************************************************
+����
+*******************************************************/
+struct worker
+{
+	int number;       /*����*/
+	int counts;       /*����*/
+	int grade;        /*����*/
+};
+/*******************************************************
+��ʾ�˵�
+*******************************************************/
+void xinxi()
+{
+	printf("\n+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\n");
+	printf("+                 ְ��������ͳ��ϵͳ                      +\n");
+	printf("+                                                         +\n");
+	printf("+                 1. ְ��������Ϣ����                     +\n");
+	printf("+                                                         +\n");
+	printf("+                 2. ����������                           +\n");
+	printf("+                                                         +\n");
+	printf("+                 3. ������������                         +\n");
+	printf("+                                                         +\n");
+	printf("+                 4. ��ְ�����Ž�����Ϣɾ��               +\n");
+	printf("+                                                         +\n");
+	printf("+                 5. ��������                             +\n");
+	printf("+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\n");
+}
+/*******************************************************
+��Ϣ��ʾ����Ļ
+*******************************************************/
+int readFromFile(struct worker w[])
+{
+	FILE *fp = NULL;
+	int i = 0;
+	fp = fopen(FILENAME, "rb");  /*���ļ�*/
+	if (fp != NULL)
+	{
+		while (!feof(fp))    /*���ļ��ж���ѧ��*/
+		{
+			if (i >= N)
+				break;
+			if (fread(w + i, sizeof(struct worker), 1, fp) == 1)
+				i++;
+		}
+		fclose(fp);
+	}
+	return i;
+}
+/*******************************************************
+����:����ְ��������Ϣ
+*******************************************************/
+int f(struct worker w[], int length)
+{
+	FILE *fp;
+	if ((fp = fopen(FILENAME, "ab+")) == NULL)
+	{
+		exit(0);
+	}
+	int i = length;
+	while (i < N) {
+		printf("��%d��ְ��\n", i);
+		printf("\n");
+		printf("�������빤��(��ְ����Ϊ0����):\n");/*���빤��*/
+		scanf("%d", &w[i].number);
+		if (w[i].number == 0)
+			break;
+		printf("\n");
+		printf("\n");
+		printf("������������:\n");/*��������*/
+		scanf("%d", &w[i].counts);
+		fwrite(&w[i], sizeof(struct worker), 1, fp);
+		printf("\n");
+		i++;
+	}
+	fclose(fp);
+	return i;
+}
+/*******************************************************
+����:���������벢�ۼ�
+*******************************************************/
+void input(struct worker w[], int length)
+{
+
+	int i = 1;
+	int number, counts;
+	printf("�����빤��:");
+	scanf("%d", &number);
+	while (number != 0)
+	{
+		printf("�������������:\n");
+		scanf("%d", &counts);
+		for (i = 0; i < length; i++)
+			if (w[i].number == number)
+			{
+				w[i].counts += counts;
+				break;
+			}
+		if (i >= length)
+			printf("���Ų�����:\n");
+		printf("�����빤��:");
+		scanf("%d", &number);
+	}
+	FILE *fp;
+	if((fp=fopen("worker.txt","wb"))==NULL)
+	{
+		printf("cannot open this file!\n");
+		exit(0);
+	}
+	for(i=0;i<length;i++)
+	fwrite(&w[i],sizeof(struct worker),1,fp);
+	fclose(fp);
+}
+////////////////////////////////////////////////////////////////////////////////
+/* ���������Ӵ�С���򲢱������� */////////////////////////////////////////////////////////////////////////////////
+void sortCounts(struct worker w[], int length)
+{
+	int i = 0, j = 0, k = 0;
+	struct worker s;
+	for (i = 0; i < length; i++)
+	{
+		k = i;
+		for (j = i + 1; j < length; j++)for (j = i + 1; j < length; j++)
+			if (w[j].counts > w[k].counts)
+				k = j;
+		/*  ���� 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 < length; 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;
+}
+////////////////////////////////////////////////////////////////////////////////
+/* ������Ρ�ͬһ���ε�ְ�����������ǵĹ��ţ�����*/
+///////////////////////////////////////////////////////////////////////////////
+void sortNumber(struct worker w[], int length)
+{
+	int i = 0;
+	int grade, count;
+	if (length > 0)
+	{
+		while (i < length)
+		{
+			count = 0;
+			grade = w[i].grade;
+			printf("����:%d ", grade);
+			printf(" ������:%d ", w[i].counts);
+			printf("%s", "����:");
+			while (i < length)
+			{
+				if (grade == w[i].grade)
+				{
+					printf("%d ", w[i].number);
+					count++;
+				}
+				else
+					break;
+				i++;
+			}
+			printf("����:%d\n", count);
+		}
+	}
+	else
+		printf("ְ�����ݲ�����!\n");
+}
+/********************************************************
+��ְ����ɾ��ְ����Ϣ
+********************************************************/
+int delet(struct worker w[], int length, int stuNum) 
+{
+	int i, j;
+	char choice;
+	for (i = 0; i < length; i++)
+	{
+		if (stuNum == w[i].number)
+		{
+			printf("��ɾ��ְ����Ϊ��");
+			printf("%d\n", w[i].number);
+			break;
+		}
+	}
+	if (i < length)
+	{
+		printf("��ȷʵҪɾ�����ְ����?(Y/N)");
+		scanf("%c", &choice);
+		if (choice == 'Y' || choice == 'y')
+		{
+			for (j = i; j < length; j++)
+				w[j] = w[j + 1];
+			length--;
+			printf("ɾ���ɹ�!\n");
+		}
+	}
+	else
+		printf("\nָ����ְ��������!\n");
+	FILE *fp;
+	if((fp=fopen("worker.txt","wb"))==NULL)
+	{
+		printf("cannot open this file!\n");
+		exit(0);
+	}
+	for(i=0;i<length;i++)
+	fwrite(&w[i],sizeof(struct worker),1,fp);
+	fclose(fp);
+	return length;
+}
+/********************************************************
+�ṹ�������е�ְ����Ϣ������ļ�
+********************************************************/
+void writeToFile(struct worker w[], int length) 
+{
+	FILE *fp = NULL;
+	int i = 0;
+	fp = fopen(FILENAME, "ab");
+	if (fp == NULL)
+	{
+		printf("���ļ�������\n");
+		exit(0);
+	}
+	for (i = 0; i < length; i++)
+		fwrite(w + i, sizeof(struct worker), 1, fp);
+	fclose(fp);
+}
+
+int main() 
+{
+	int choice;
+	struct worker w[N];
+	int NUM;
+	char stuName[100];
+	int stuNum;
+	int length = 0;
+	length = readFromFile(w);//����
+	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("��������ɾ����ְ����");
+			scanf("%d", &stuNum);
+			length = delet(w, length, stuNum);
+			break;
+		case 5:
+		{
+			writeToFile(w, length);//����
+			printf("����ʹ���Խ���\n");
+			exit(0);
+		}
+		default:
+		{printf("�����������������:\n");
+		}
+		}
+	} while (1);
+}
diff --git a/职工工作量统计.exe b/职工工作量统计.exe
new file mode 100644
index 0000000..71b620d
Binary files /dev/null and b/职工工作量统计.exe differ