试着写了个链表.cpp

homework2/CMakeLists.txt

@@ -0,0 +1,7 @@
+cmake_minimum_required(VERSION 3.29)
+project(homework2)
+
+set(CMAKE_CXX_STANDARD 20)
+
+add_executable(Test_LinkList LinkLits.cpp
+        Test_LinkList.cpp)

homework2/LinkLits.cpp

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+#include <iostream>
+#include<iomanip>
+using namespace std;
+
+typedef struct bookNode {
+    string id;
+    string name;
+    double price;
+    bookNode *next;
+} book_node, *bookList;
+
+bool is_list_empty(bookList *l) {
+    if ((*l)->next == NULL) {
+        return true;
+    }
+    return false;
+}
+
+void display(bookList *l) {
+    if (is_list_empty(l)) {
+        printf("List is empty\n");
+    } else {
+        bookNode *temp = (*l)->next;
+        while (temp != NULL) {
+            cout << temp->id << " " << temp->name << " " << fixed << setprecision(2) << temp->price << endl;
+            temp = temp->next;
+        }
+    }
+}

homework2/Test_LinkList.cpp

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+#include <iostream>
+#include "LinkLits.cpp"
+using namespace std;
+
+void insert(bookList *l) {
+    bookNode *temp = (*l)->next;
+    while (temp != NULL) {
+        cin >> (*temp).id >> (*temp).name >> (*temp).price;
+        if (!(((*temp).id == "" && (*temp).name == "" && (*temp).price == 0))) {
+            temp = (*temp).next;
+        } else {
+            temp = NULL;
+        }
+    }
+}
+
+int main() {
+    bookList books = new bookNode;
+    books->next = NULL;
+    insert(&books);
+    display(&books);
+    return 0;
+}