From 581a86fe3c50e091237ed1880fe9988307dda40c Mon Sep 17 00:00:00 2001
From: Lukebing123 <1449021988@qq.com>
Date: Fri, 4 Jan 2019 23:23:22 +0800
Subject: [PATCH] first commit

---
 keshe.cpp | 282 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 282 insertions(+)
 create mode 100644 keshe.cpp

diff --git a/keshe.cpp b/keshe.cpp
new file mode 100644
index 0000000..d6b2941
--- /dev/null
+++ b/keshe.cpp
@@ -0,0 +1,282 @@
+#include<stdio.h>
+#include<string.h>
+#include<stdlib.h>
+struct student_info
+{
+	int id;
+	char name[20];
+	float cscore;
+};
+struct student students[50];
+int count=0;
+printf("****************???????***************");
+printf("*                                           *");
+printf("**              1.????                 **");
+printf("**              2.????                 **");
+printf("**              3.????                 **");
+printf("**              4.????????         **");
+printf("**              5.?????,???       **");
+printf("**              6.?????????       **");
+printf("****************~~~~~~~~~~~~~~***************");
+int main()
+{
+int n;
+system("cls")
+char name[20];
+int i=0;
+FILE *fp;
+if((fp=fopen("a.txt","w+"))==NULL)
+{
+	printf("can not open the file!");
+	exit(0);
+}
+for(i=0;i<50;i++)
+{
+	fprintf(fp,"%d %s %d",students[i].id,students[i].name,students[i].cscore);
+}
+do
+{
+printf("?????????:1.?? 2.?? 3.?? 4.????????\n5.?????,??? 6.????????? 7.??\n");
+scanf("%d",&n);
+switch(n)
+{
+  case 1:
+	      printf("???????????");
+		  scanf("%s",students[i].name)
+		  search_student(students,name);
+		  break;
+  case 2:
+	      printf("??0???????????????\n");
+	      do
+	    {
+	      printf("???????????:");
+	      scanf("%d",&students[i],id);
+	      printf("???????????:");
+	      scanf("%s",students[i].name);
+	      printf("???????????");
+		  scanf("%f",&students[i].csore);
+		  if(students[i].id!=0)
+		  fprintf(fp,"%d %s %s",students[i].id,students[i].name,students[i].cscore);
+		}while(students[i].id!=0);
+		 fclose(fp);
+         break;
+  case 3:
+  	      printf("???????????:");
+  	      scanf("%d",&students[i].id);
+  	      printf("???????????:");
+  	      scanf("%s",students[i].name);
+  	      printf("???????????:");
+  	      scanf("%d",&students[i].cscore);
+  	      modify_student(students,id,name,cscore);
+          break;
+  case 4:
+  	      system("cls");
+  	      int i,j
+			 if((fp=fopen("a.txt","w+"))==NULL)
+          {
+	            printf("can not open the file!");
+	            exit(0);
+          }
+          while(fscanf(fp,"%d %s %d",&students[i].id,&students[i].name,&students[i].cscore)!=EOF)
+          {
+          	i++;
+		  }
+		  fclose(fp);
+		  printf("90????:");
+		  for(j=0;j<i;j++)
+		  {
+		  	if(students[j].cscore>=90)
+		  	printf("%d %s %d",students[j].id,students[j].name,students[j].cscore);
+		  	printf("\n");
+		  }
+		  printf("80????:");
+		  for(j=0;j<i;j++)
+		  {
+		  	if(students[j].cscore>=80&&students[j].cscore<90)
+		  	printf("%d %s %d",students[j].id,students[j].name,students[j].cscore);
+		  	printf("\n");
+		  }
+  	      printf("70????:");
+  	      for(j=0;j<i;j++)
+		  {
+		  	if(students[j].cscore>=70&&students[j].cscore<80)
+		  	printf("%d %s %d",students[j].id,students[j].name,students[j].cscore);
+		  	printf("\n");
+		  }
+		  printf("60????:")
+	      for(j=0;j<i;j++)
+		  {
+		  	if(students[j].cscore>=60&&students[j].cscore<70)
+		  	printf("%d %s %d",students[j].id,students[j].name,students[j].cscore);
+		  	printf("\n");
+		  }
+		  printf("50????:");
+		   for(j=0;j<i;j++)
+		  {
+		  	if(students[j].cscore>=50&&students[j].cscore<60)
+		  	printf("%d %s %d",students[j].id,students[j].name,students[j].cscore);
+		  	printf("\n");
+		  }
+		  printf("40????:");
+		  for(j=0;j<i;j++)
+		  {
+		  	if(students[j].cscore>=40&&students[j].cscore<50)
+		  	printf("%d %s %d",students[j].id,students[j].name,students[j].cscore);
+		  	printf("\n");
+		  }
+		  printf("30????:");
+		  for(j=0;j<i;j++)
+		  {
+		  	if(students[j].cscore>=30&&students[j].cscore<40)
+		  	printf("%d %s %d",students[j].id,students[j].name,students[j].cscore);
+		  	printf("\n");
+		  }
+		  printf("20????:");
+		  for(j=0;j<i;j++)
+		  {
+		  	if(students[j].cscore>=20&&students[j].cscore<30)
+		  	printf("%d %s %d",students[j].id,students[j].name,students[j].cscore);
+		  	printf("\n");
+		  }
+		  printf("10????:");
+		  for(j=0;j<i;j++)
+		  {
+		  	if(students[j].cscore>=10&&students[j].cscore<20)
+		  	printf("%d %s %d",students[j].id,students[j].name,students[j].cscore);
+		  	printf("\n");
+		  }
+		  printf("0????:");
+		  for(j=0;j<i;j++)
+		  {
+		  	if(students[j].cscore>=0&&students[j].cscore<10)
+		  	printf("%d %s %d",students[j].id,students[j].name,students[j].cscore);
+		  	printf("\n");
+		  }
+		  for(j=0;j<i;j++)
+		  if(students[j].cscore<0)
+		  break;
+
+  case 5:
+  	         system("cls");
+			 if((fp=fopen("a.txt","w+"))==NULL)
+          {
+	            printf("can not open the file!");
+	            exit(0);
+          }
+          while(fscanf(fp,"%d %s %d",&students[i].id,&students[i].name,&students[i].cscore)!=EOF)
+          {
+          	i++;
+		  }
+		  fclose(fp);
+		  int max,min,j;
+		  for(j=0;j<i;j++)
+		  {
+		  	if(students[j].cscore<students)
+		  }
+		 
+		 
+		 
+		 
+		 
+		 
+		 
+		 
+		 
+		 
+		 
+  case 6:
+  	      system("cls");
+			 if((fp=fopen("a.txt","w+"))==NULL)
+          {
+	            printf("can not open the file!");
+	            exit(0);
+          }
+          while(fscanf(fp,"%d %s %d",&students[i].id,&students[i].name,&students[i].cscore)!=EOF)
+          {
+          	i++;
+		  }
+		  fclose(fp);
+		  strcut student temp;
+		  for(j=0;j<i-1;j++)
+		  {
+		  	for(u=0;u<i-1-j;u++)
+		  	if(students[u].cscore<students[u+1].cscore)
+		  	temp=students[u];
+		  	students[u]=students[u+1];
+		  	students[u+1]=temp;
+		  }
+		  for(j=0;j<i;j++)
+		  printf("%d %s %d",students[j].id,students[j].name,students[j].cscore);
+		  break;
+		 
+	  int serach_student(struct student_info students[],char *name)
+	  {
+		     system("cls");
+			 if((fp=fopen("a.txt","w+"))==NULL)
+          {
+	            printf("can not open the file!");
+	            exit(0);
+          }
+          while(fscanf(fp,"%d %s %d",&students[i].id,&students[i].name,&students[i].cscore)!=EOF)
+          {
+          	i++;
+		  }
+		  fclose(fp);
+		  int i,flag=0;
+		  if(i==0)
+		   {
+			  printf("??????!\n");
+			  return -1;
+		   }
+		  for(j=0;j<i;j++)
+		  {
+			  if(strcmp(name,students[j].name)==0)
+				  flag=1;
+		      if(flag)
+		        {
+			      printf("??: %s ??:%s c????:%f",students[j].id,students[j].name,students[j].cscore);
+			      return j;
+			    }
+	      }
+	      printf("????????!");
+	      return -1;
+      }
+
+      int modify_student(struct student_info students[],int idcard,char *names,int cscores)
+      {
+      	     system("cls");
+      	     int n,i,j;
+			 if((fp=fopen("a.txt","w+"))==NULL)
+          {
+	            printf("can not open the file!");
+	            exit(0);
+          }
+          while(fscanf(fp,"%d %s %d",&students[i].id,&students[i].name,&students[i].cscore)!=EOF)
+          {
+          	i++;
+		  }
+		  printf("1.??????????? 2.??????????? ???:\n");
+		  scanf("%d",&n);
+		  if(n==1)
+		  {
+		  	for(j=0;j<i;j++)
+		  	{
+		  		if(strcmp(names,students[j].name)==0)
+		  		students[j].cscore=cscores;
+			}
+		  }
+		  if(n==2)
+		  {
+		  	for(j=0;j<i;j++)
+		  	{
+		  		if(idcard==students[j].id)
+		  		students[j].cscore=cscores;
+			}
+		  }
+		  fp=fopen("a.txt","w");
+		  for(j=0;j<i;j++)
+		  {
+		  	fprintf(fp,"%d %s %d",students[j].id,students[j].name,students[j].cscore);
+		  }
+		  fclose(fp);
+	  }