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@ -131,4 +131,31 @@ void add_data()
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books = p; // 新节点成为链表头
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printf("图书信息添加成功!\n");
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}
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// 更新图书信息
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void update_data()
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{
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int id;
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struct book *p;
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printf("请输入要修改的图书编号:");
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scanf("%d", &id);
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p = find(id); // 查找编号为id的图书
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if(p != NULL)
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{
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printf("请依次输入修改后的图书信息:\n");
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printf("图书名称:");
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scanf("%s", p->name);
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printf("图书作者:");
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scanf("%s", p->author);
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printf("图书价格:");
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scanf("%f", &p->price);
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printf("图书信息修改成功!\n");
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}
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else
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{
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printf("没有找到编号为%d的图书!\n", id);
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}
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}
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