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\ n“);} n ++; save(a,n);} int del(预定a [],int n){int i,j,num简单图书管理系统c语言,ret; ret = -1; system(” CLS“); printf(”请输入要删除的书的编号: “); scanf(”%d“,&num);对于(i = 0; i <100; i ++){if(a [i] .num == num){for(j = i; j <100; j ++){a [j] .num = a [j + 1] .num; strcpy(a [j] .name, a [j + 1] .name); strcpy(a [j] .author,a [j + 1] .author); strcpy(a [j] .press,a [j + 1] .press); strcpy( a [j] .date,a [j + 1] .date); a [j] .price = a [j + 1] .price; strcpy(a [j] .kind,a [j + 1] .kind ); a [j] .total = a [j + 1] .total;} printf(“这本书已被删除”); ret = i;}} if(ret ==-1){printf(“找到记录;“);} fflush(stdin);返回ret;} int xiugai(书a [],int n){int i,num_change,b = -1;系统(” CLS“); printf(”输入数字待修改书籍的数量: “); scanf(”%d“,&num_change); for(i = 0; i <100; i ++){if(a [i] .num == num_change){getchar (); printf(“ Modify book name: ”); gets(a [i] .name); printf(“ hanges作者: “);得到([i] .author); printf(“ modify Press: ”);得到([i] .press); printf(“修改后的发布日期: ”);得到([i] .date); printf(“修改类型: ”);得到([i] .kind); printf(“修改价格: ”); scanf(“%d”,[i] .price); prin tf(“更改总数: ”); scanf(“%d”,一个[i]总计); b =我; break;}} if(i == 100){printf(“未找到相关记录”); } return n;}无效借用(将a []设为int n){int i,num,fact,d,I,s; printf(“请输入书号: ”); scanf(“%d”,&num);事实= -1; for(i = 0; i

“);}保存(a,n);}无效返回(图书a [],int n){int s,I,num,i,fact; printf(”请输入书号: “); scanf(“%d”,&num); for(i = 0; i
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