输入修好了

homework2/test1.cpp

@@ -8,7 +8,7 @@ typedef struct node {
     string name;
     double price;
     struct node *next;
-} node, book_list*;
+} node, *book_list;
 
 void init_list(book_list *books) {
     *books = new node();
@@ -16,19 +16,31 @@ void init_list(book_list *books) {
 }
 
 void create_from_end(book_list *books) {
-    node *r = reinterpret_cast<node *>(books);
+    node *r = *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;
+        } else {
+            r->next = s;
         }
-    } while (r->next != NULL);
+        r = r->next;
+    } while (r != NULL);
+}
+
+void display(book_list *books) {
+    while ((*books)->next != NULL) {
+        *books = (*books)->next;
+        cout << (*books)->id << " " << (*books)->name << " " << fixed << setprecision(2) << (*books)->price << endl;
+    }
 }
 
 
 int main() {
+    book_list *books;
+    init_list(books);
+    create_from_end(books);
+    display(books);
     return 0;
 }