定义好第一题结构体、初始化函数、插入函数

homework2/test1.cpp

@@ -0,0 +1,34 @@
+#include <iostream>
+#include <iomanip>
+
+using namespace std;
+
+typedef struct node {
+    string id;
+    string name;
+    double price;
+    struct node *next;
+} node, book_list*;
+
+void init_list(book_list *books) {
+    *books = new node();
+    (*books)->next = NULL;
+}
+
+void create_from_end(book_list *books) {
+    node *r = reinterpret_cast<node *>(books);
+    node *s = new node();
+    do {
+        cin >> s->id >> s->name >> s->price;
+        if (s->id == "0" && s->name == "0" && s->price == 0) {
+            r->next = s;
+        } else {
+            r->next = NULL;
+        }
+    } while (r->next != NULL);
+}
+
+
+int main() {
+    return 0;
+}