diff --git a/shiyan02.cpp b/shiyan02.cpp
new file mode 100644
index 0000000..1a9a85b
--- /dev/null
+++ b/shiyan02.cpp
@@ -0,0 +1,438 @@
+#include<stdio.h>
+#include<string.h>
+#include<stdlib.h>
+#include<ctype.h>
+#define N 10000
+ 
+struct Equipment
+{
+char bianhao[20]; 
+char zhonglei[20]; 
+char name[20]; 
+char price[20]; 
+char buy_date[20]; 
+char baofei[20];    
+};
+ 
+
+ 
+struct Equipment equipment[1000];
+int num=0;
+ 
+
+int Equipment_SearchByBuy_date(char riqi[])
+{
+int i;
+for (i=0;i<num;i++)
+{
+if (strcmp(equipment[i].buy_date,riqi)==0)
+{
+return i;
+}
+}
+return -1;
+}
+ 
+int Equipment_SearchByName(char leibie[])
+ 
+{
+int i;
+for (i=0;i<num;i++)
+{
+if (strcmp(equipment[i].name,leibie)==0)
+{
+return i;
+}
+}
+return -1;
+}
+ 
+ 
+int Equipment_SearchByBaofei(char baofei[])
+ 
+{
+int i;
+for (i=0;i<num;i++)
+{
+if (strcmp(equipment[i].baofei,baofei)==0)
+{
+return i;
+}
+}
+return -1;
+}
+ 
+
+int Equipment_SearchByPrice(char jiage[])
+{
+int i;
+for (i=0;i<num;i++)
+{
+if (strcmp(equipment[i].price,jiage)==0)
+{
+return i;
+}
+}
+return -1;
+}
+ 
+ 
+ int Equipment_SearchByZhonglei(char zhonglei[])
+{
+int i;
+for (i=0;i<num;i++)
+{
+if (strcmp(equipment[i].zhonglei,zhonglei)==0)
+{
+return i;
+}
+}
+return -1;
+}
+ 
+
+
+ 
+ 
+int Equipment_SearchByIndex(char id[])
+{
+int i;
+for (i=0;i<num;i++)
+{
+if (strcmp(equipment[i].bianhao,id)==0)
+{
+return i;
+}
+}
+return -1;
+}
+
+ 
+void Equipment_DisplaySingle(int index)
+{
+printf("设备编号  设备种类  设备名称  设备价格  设备购买时间  实验设备是否报废及报废日期\n");
+printf("%3s%10s%10s%12s%13s%15s\n",equipment[index].bianhao,equipment[index].zhonglei,equipment[index].name,equipment[index].price,equipment[index].buy_date,equipment[index].baofei);
+}
+ 
+ 
+  
+void Equipment_Insert()
+{
+while(1)
+{
+printf("请输入 实验设备编号 →");
+scanf("%s",&equipment[num].bianhao);
+printf("请输入 实验设备种类 →");
+scanf("%s",&equipment[num].zhonglei);
+printf("请输入 实验设备名称 →");
+scanf("%s",&equipment[num].name);
+printf("请输入 实验设备价格 →");
+scanf("%s",&equipment[num].price);
+printf("请输入 实验设备购买时间→");
+scanf("%s",&equipment[num].buy_date);
+printf("请输入 实验设备是否报废及报废日期→");
+scanf("%s",&equipment[num].baofei);
+num++;
+printf("\n是否继续信息录入 →(y/n)" );
+getchar();
+if (getchar()=='n')
+{
+break;
+}
+}
+}
+ 
+ 
+
+ 
+void Equipment_Modify()
+{
+while(1)
+{
+char id[20];
+int index;
+printf("\n\n\n\n\n请输入 需要修改的实验设备编号→");
+scanf("%s",&id);
+index=Equipment_SearchByIndex(id);
+if (index==-1)
+{
+printf("**该设备不存在! 抱歉**\n");
+}
+else
+{
+printf("你需要修改的设备信息为 →\n");
+Equipment_DisplaySingle(index);
+printf("--* 请输入修改新值 *--\n");
+printf("请输入 设备编号→:");
+scanf("%s",&equipment[index].bianhao);
+printf("请输入 设备种类→");
+scanf("%s",&equipment[index].zhonglei);
+printf("请输入 设备名称→");
+scanf("%s",&equipment[index].name);
+printf("请输入设备价格→");
+scanf("%s",&equipment[index].price);
+printf("请输入 设备购买时间 →");
+scanf("%s",&equipment[index].buy_date);
+printf("请输入 实验设备是否报废及报废日期→");
+scanf("%s",&equipment[num].baofei);
+}
+printf(" 是否继续 →(y/n)");
+getchar();
+if (getchar()=='n')
+{
+break;
+}
+}
+}
+ 
+
+ 
+void Equipment_Delete()
+{
+int i;
+while(1)
+{
+char id[20];
+int index;
+printf("请输入 要删除的设备编号 →");
+scanf("%s",&id);
+index=Equipment_SearchByIndex(id);
+if (index==-1)
+{
+printf("设备不存在! 抱歉\n");
+}
+else
+{
+printf("你要删除的设备信息为 →\n");
+Equipment_DisplaySingle(index);
+printf("是否真的要删除该设备→(y/n)");
+getchar();
+if (getchar()=='y')
+{
+for (i=index;i<num-1;i++)
+{
+equipment[i]=equipment[i+1];
+}
+num--;
+}
+}
+printf("是否继续 →(y/n)");
+getchar();
+if (getchar()=='n')
+{
+break;
+}
+}
+}
+ 
+void Equipment_baofeiSelect()
+{
+while(1)
+{
+char baofei[20];
+int index;
+printf("请输入 要查询的设备是否报废及报废日期→");
+scanf("%s",&baofei);
+index=Equipment_SearchByBaofei(baofei);
+if (index==-1)
+{
+printf("设备不存在! 抱歉\n");
+}
+else
+{
+printf("你要查询的设备信息为→\n");
+Equipment_DisplaySingle(index);
+}
+printf("是否继续→(y/n)");
+getchar();
+if (getchar()=='n')
+{
+break;
+}
+}
+}
+ 
+
+void Equipment_zhongleiSelect()
+{
+while(1)
+{
+char zhonglei[20];
+int index;
+printf("请输入 要查询的设备种类→");
+scanf("%s",&zhonglei);
+index=Equipment_SearchByZhonglei(zhonglei);
+if (index==-1)
+{
+printf("设备不存在! 抱歉\n");
+}
+else
+{
+printf("你要查询的设备信息为→\n");
+Equipment_DisplaySingle(index);
+}
+printf("是否继续→(y/n)");
+getchar();
+if (getchar()=='n')
+{
+break;
+}
+}
+}
+ 
+
+ 
+void Equipment_bianhaoSelect()
+{
+while(1)
+{
+char bianhao[20];
+int index;
+printf("请输入 要查询的设备编号→");
+scanf("%s",&bianhao);
+index=Equipment_SearchByIndex(bianhao);
+if (index==-1)
+{
+printf("设备不存在! 抱歉\n");
+}else
+{
+printf("你要查询的设备信息为→\n");
+Equipment_DisplaySingle(index);
+}
+printf("是否继续 →(y/n)");
+getchar();
+if (getchar()=='n')
+{
+break;
+}
+}
+}
+
+ 
+void Equipment_priceSelect()
+{
+while(1)
+{
+char price[20];
+int index;
+printf("请输入 要查询的设备价格→");
+scanf("%s",&price);
+index=Equipment_SearchByPrice(price);
+if (index==-1)
+{
+printf("设备不存在! 抱歉\n");
+}
+else
+{
+printf("你要查询的设备信息为→\n");
+Equipment_DisplaySingle(index);
+}
+printf("是否继续 →(y/n)");
+getchar();
+if (getchar()=='n')
+{
+break;
+}
+}
+}
+ 
+
+void Equipment_nameSelect()
+{
+while(1)
+{
+char name[20];
+int index;
+printf("请输入 要查询的设备名称→");
+scanf("%s",&name);
+index=Equipment_SearchByName(name);
+if (index==-1)
+{
+printf("设备不存在! 抱歉\n");
+}
+else
+{
+printf("你要查询的设备信息为→\n");
+Equipment_DisplaySingle(index);
+}
+printf("是否继续 →(y/n)");
+getchar();
+if (getchar()=='n')
+{
+break;
+}
+}
+}
+void Equipment_paixubianhao()
+{
+int i,j;
+struct Equipment paixu1;
+for (i=0;i<num;i++)
+{
+for (j=1;j<num-i;j++)
+{
+if (equipment[j-1].bianhao>equipment[j].bianhao)
+{
+paixu1=equipment[j-1];
+equipment[j-1]=equipment[j];
+equipment[j]=paixu1;
+}
+}
+}
+}
+ 
+void Equipment_buydateSelect()
+{
+while(1)
+{
+char buy_date[20];
+int index;
+printf("请输入 要查询的设备的购买时间→");
+scanf("%s",&buy_date);
+index=Equipment_SearchByPrice(buy_date);
+if (index==-1)
+{
+printf("设备不存在! 抱歉\n");
+}
+else
+{
+printf("你要查询的设备信息为→\n");
+Equipment_DisplaySingle(index);
+}
+printf("是否继续 →(y/n)");
+getchar();
+if (getchar()=='n')
+{
+break;
+}
+}
+}
+
+ void Equipment_Add()
+{
+while(1)
+{
+printf("请输入 实验设备编号 →");
+scanf("%s",&equipment[num].bianhao);
+printf("请输入 实验设备种类 →");
+scanf("%s",&equipment[num].zhonglei);
+printf("请输入 实验设备名称 →");
+scanf("%s",&equipment[num].name);
+printf("请输入新的实验设备价格 →");
+scanf("%s",&equipment[num].price);
+printf("请输入新的实验设备购买时间→");
+scanf("%s",&equipment[num].buy_date);
+printf("请输入新的实验设备是否报废及报废日期→");
+scanf("%s",&equipment[num].baofei);
+num++;
+printf("\n是否继续信息录入 →(y/n)" );
+getchar();
+if (getchar()=='n')
+{
+break;
+}
+}
+}
+ 
+
+