简易水电费管理系统源程序代码

简易水电费管理系统源程序代码

法一：

#include

#include

#include

struct member

{char no[100];

char name[20];

char password[20];

float wfee;

float efee;

}memb;

void newadd(int n)

{ int t,i;

fseek(fp,0,SEEK_END);

printf(">>新添人数：");

scanf("%d",&t);

for(i=0;i

{ printf("新添第%d个成员：");

scanf("%s %s %s %f %f",memb.no,https://www.360docs.net/doc/4311241238.html,,memb.password,memb.wfee,memb.efee); fwrite(&memb,sizeof(struct member),1,fp);

}

}

void look(int n)

{ char a[100];

printf(">>输入卡号：");

scanf("%s",a);

int i=0;

rewind(fp);

while(1)

{ fread(&memb,sizeof(struct member),1,fp);

if(feof(fp)||memb.no==a) break;

i++;

}

if(!feof(fp))

{ printf(">>卡号：");

printf("%s\n",memb.no);

printf(">>姓名：");

printf("%s\n",https://www.360docs.net/doc/4311241238.html,");

printf(">>水费：");

printf("%f\n",memb.wfee);

printf(">>电费：");

printf("%f\n",memb.efee);

}

else

printf(">>查无此人\n");

};

void delete(int n)

{ char c[100];

printf(">>删除的卡号:");

scanf("%s," c);

if((fp1=fopen("temp.bin","wb"))==NULL)

{

printf(">>不能建立临时文件，无法删除\n");

}

rewind(fp);

while(1)

{ fread(&memb,sizeof(struct member),1,fp);

if(feof(fp)) break;

if(memb.no!=c)

fwrite(&memb,sizeof(struct member),1,fp1);}

fclose(fp1);

fclose(fp);

remove("member.bin");

rename("temp.bin","member.bin");

fp=fopen("member.bin","rb++");};

main()

{ char a[100]; char b[20];

FILE *fp;

printf("欢迎进入水电费管理系统\n")

int i=0,sel=1;

if((fp=fopen("member.bin","wb++"))==NULL)

{ printf(">>不能建立member.bin文件\n");

return(0);

}

while(sel!=0)

{ printf("| 1 | 2 | 3 | 4 |\n"); printf("| ------------------------------------------------------------ |\n"); printf("|新添成员|查找个人信息|删除成员|退出|\n); fseek(fp,0,SEEK_END);

scanf("%d",&sel);

switch(sel)

{ case 1:

newadd(sel); break;

clscr(); exit(0);

case 2:

printf("请输入您的卡号：");

printf("%s",a);

printf("请输入您的密码：");

puts(b);

while(strcmp(a,memb.no)==0&&strcmp(b,memb.password)==0)

look(sel);

printf("您的输入有误\n"); break;

clscr();

exit(0);

case 3:

delete(sel); break;

clscr();

exit(0);

}

法二：

#include

#include

#include

#include

#include

struct member

{char no[100];

char name[20];

char password[20];

float wfee;

float efee;

}memb;

void newadd(int n)

{ int t,i;FILE *fp;

fp=fopen("e:\\member.bin","a");

fseek(fp,0,SEEK_END);

printf(">>新添人数：");

scanf("%d",&t);

for(i=0;i

{ printf("新添第%d个成员：",i+1);

scanf("%s %s %s %f %f",memb.no,https://www.360docs.net/doc/4311241238.html,,memb.password,&memb.wfee,&memb.efee); fwrite(&memb,sizeof(struct member),1,fp);}fclose(fp);

}

void look(int n)

{ char a[100],b[20]; FILE *fp;int i;

fp=fopen("e:\\member.bin","rb");

if(fp==NULL) printf("****");

printf(">>输入卡号：");

scanf("%s",a);

i=0;

rewind(fp);

while(1)

{ fread(&memb,sizeof(struct member),1,fp);

if(feof(fp)||strcmp(memb.no,a)==0) break;

i++;

}

if(!feof(fp))

{ printf(">>卡号：");

printf("%s\n",memb.no);

printf(">>姓名：");

printf("%s\n",https://www.360docs.net/doc/4311241238.html,);

printf(">>水费：");

printf("%f\n",memb.wfee);

printf(">>电费：");

printf("%f\n",memb.efee);

}

else

printf(">>查无此人\n");

getch();

fclose(fp);}

void dele(int n)

{ char c[100];FILE *fp,*fp1;

fp=fopen("e:\\member.bin","rb");

printf(">>删除的卡号:");

scanf("%s" ,c);

if((fp1=fopen("temp.bin","wb"))==NULL)

{

printf(">>不能建立临时文件，无法删除\n");

}

rewind(fp);

while(1)

{ fread(&memb,sizeof(struct member),1,fp);

if(feof(fp)) break;

if(strcmp(memb.no,c)!=0)

fwrite(&memb,sizeof(struct member),1,fp1);} fclose(fp1);

fclose(fp);

remove("member.bin");

rename("temp.bin","member.bin");

fp=fopen("member.bin","rb+");

}

main()

{ char a[100]; char b[20];int i=0,sel=1;

FILE *fp;

printf("欢迎进入水电费管理系统\n");

if((fp=fopen("e:\\member.bin","wb"))==NULL)

{ printf(">>不能建立member.bin文件\n");

return(0);

}

while(sel!=0)

{ printf("| 1 | 2 | 3 | 4 |\n"); printf("| ------------------------------------------------------------ |\n"); printf("|新添成员|查找个人信息|删除成员|退出|\n"); fseek(fp,0,SEEK_END);

scanf("%d",&sel);printf("sel=%d\n",sel);

switch(sel)

{ case 1:

newadd(sel);

system("cls"); break;

case 2:

look(sel);

system("cls"); break;

case 3:

dele(sel);system("cls");

break;

}

}

}