高手帮帮忙！进来指导（图书信息管理程序）

来源：互联网发布：vb通用对话框编辑：程序博客网时间：2024/05/22 07:51

图书信息管理主要功能包括： • 图书基本信息录入（图书基本信息包括图书编号、图书名称、出版社名称、图书作者、图书价格） • 图书基本信息修改 • 图书删除 • 图书基本信息查询（根据图书编号、图书名称、图书作者、出版社查询图书信息）

『高手看看哪有错，指点偶下哈』 1 include<stdio.h>

2 main()

3 { FILE *fp,*fp2;

4 struct book

5 { int num;

6 char name;

7 char editor;

8 char agenct;

9 float price;

10 struct book *next;

11 *p;

12 }book[n]

13 head=NULL;

14 int i;

15 printf("/nplease input num,name,editor,agenct&price:");

16 for(i=0;i<n;i++)

17 scanf("%d%s%s%s%f",&num,&name,&editor,&agenct,&price);

18 p->num=num;

19 p->name=name;

20 p->editor=editor;

21 p->price=price;

22 return(head);

23 changebook() /*修改图书函数*/

24 { FILE *fp,*fp2;

25 char name[10],choice;

26 int i;

27 fp=fopen("book,txt","r");

28 fp=fopen("book1,txt","w");

29 printf("please input changebook name/n");

30 scanf("%s",&name);

31 for(i=0;fread(&book[i],sizeof(struct book),1,fp)!=0;i++)

32 {if(strcmp(book[i].name,name)==0)

33 { printf("This is you need information,choice the num/n");

34 printf("num:<%d>,name:<%s>,editor:<%s>,agenct:<%s>,price:<%f>/n",book[i].num,book[i].name,book[i].editor,book[i].agenct,book[i],price/n);

35 printf("press 1 changebook num/n");

36 printf("press 2 changebook name/n");

37 printf("press 3 changebook editor/n");

38 printf("press 4 changebook agenct/n");

39 printf("press 5 changebook price/n");

40 scanf("%s",&choice);

41 switch(choice)

42 {

43 case'1':{printf("please input NEW num/n");

44 scanf("%d",&book[i].num/n);

45 fwrite(&book[i],sizeof(struct book),1,fp2);}

46 break;

47 case'2':{printf("please input NEW name/n");

48 scanf("%d",&book[i].name/n);

49 fwrite(&book[i],sizeof(struct book),1,fp2);}

50 break;

51 case'3':{printf("please input NEW editor/n");

52 scanf("%d",&book[i].editor/n);

53 fwrite(&book[i],sizeof(struct book),1,fp2);}

54 break; 55 case'4':{printf("please input NEW agenct/n"); 56 scanf("%d",&book[i].agenct/n);

59 fwrite(&book[i],sizeof(struct book),1,fp2);} 60 break;

61 case'5':{printf("please input NEW price/n");

62 scanf("%d",&book[i].price/n);

63 fwrite(&book[i],sizeof(struct book),1,fp2);} 64 break;

65 }continue;

66 }fwrite(&book[i],sizeof(struct book),1,fp2);

}fclose(fp); fclose(fp2); 67 68 fp=fopen("book,txt","w");

69 fp2=fopen("book,txt","r");

70 for(i=0;fread(&book[i],sizeof(struct book),1,fp2)!=0;i++)

71 {fwrite(&book[i],sizeof(struct book),1,fp);}

72 fclose(fp);

73 fp2=fopen("book1,txt","w");

74 fclose(fp2);

75 printf("press any key to return back/n");

76 getchar();

77 return;

78 chabook() /*查找图书函数*/

79 {char ch1;

80 printf("---------welcome to search book system----------/n");

81 printf("press 1 , search by num/n");

82 printf("press 2 , search by name/n");

83 printf("press 3 , search by editor/n");

84 printf("press 4 , search by agenct/n");

85 printf("press 0 , return back/n");

86 scanf("%s",&ch1);

87 switch(ch1)

88 {

89 case'1':findbook1();getchar();break;

90 case'2':findbook2();getchar();break;

91 case'3':findbook3();getchar();break;

92 case'4':findbook4();getchar();break;

93 case'0':break;

94 }

95 findbook1()

96 {FILE *fp,*fp2;

97 int i;

98 printf("please input booknum"); 99 scanf("%d",&booknum);

100 fp=fopen("book,txt","r");

101 for(i=0;fread(&book[i],sizeof(struct book),1,fp)!=0;i++)

102 {if(book[i].num=num)

103 printf("The information:/n<num:%d,name:%s,editor:%s,agenct:%s,price:&s>/n",book[i].num,book[i].name,book[i].editor,book[i].agenct,book[i].price/n);

104 }fclose(fp);

105 }

106 findbook2()

107 {FILE *fp,*fp2;

108 int i;

109 printf("please input bookname"); 110 scanf("%d",&bookname);

112 fp=fopen("book,txt","r");

113 for(i=0;fread(&book[i],sizeof(struct book),1,fp)!=0;i++)

114 {if(book[i].name=name)

115 printf("The information:/n<num:%d,name:%s,editor:%s,agenct:%s,price:&s>/n",book[i].num,book[i].name,book[i].editor,book[i].agenct,book[i].price/n);

116 }fclose(fp);

117 }

118 findbook3()

119 {FILE *fp,*fp2;

120 int i;

121 printf("please input bookeditor");

123 scanf("%d",&bookeditor);

124 fp=fopen("book,txt","r");

125 for(i=0;fread(&book[i],sizeof(struct book),1,fp)!=0;i++)

126 {if(book[i].editor=editor)

127 printf("The information:/n<num:%d,name:%s,editor:%s,agenct:%s,price:&s>/n",book[i].num,book[i].name,book[i].editor,book[i].agenct,book[i].price/n);

128 }fclose(fp);

129 }

130 findbook4()

131 {FILE *fp,*fp2;

132 int i;

133 printf("please input bookagenct");

134 scanf("%d",&bookagenct);

135 fp=fopen("book,txt","r");

136 for(i=0;fread(&book[i],sizeof(struct book),1,fp)!=0;i++)

137 {if(book[i].agenct=agenct)

138 printf("The information:/n<num:%d,name:%s,editor:%s,agenct:%s,price:&s>/n",book[i].num,book[i].name,book[i].editor,book[i].agenct,book[i].price/n);

139 }fclose(fp);

140 }

141 char ch2; /*提示界面*/ if(head=NULL) 142 printf("press 1 Findbook you want/n "); 143 printf("press 2 Edit the information about the book/n"); 144 printf("please choice the number 0~2/n"); 145 scanf("%s",&ch2); 146 switch(ch1) 147 { 148 case'1':chabook();break; 149 case'2':changebook;break; 150 } 151 }

图书删除忘写了！