把输入函数修好了

homework2/LinkList.h

@@ -12,7 +12,7 @@ typedef struct bookNode {
 
 bool isEmpty(bookList);
 
-void insert(bookList &l);
+void create(bookList &l);
 
 void display(bookList *l);
 

homework2/LinkLits.cpp

@@ -11,6 +11,30 @@ bool isEmpty(bookList *l) {
     return false;
 }
 
+void create(bookList &l) {
+    bookNode *input = new bookNode;
+    input->next = NULL;
+    bookNode *temp = l; // 从头节点开始
+    bool flag = true;
+
+    while (flag) {
+        cin >> input->id >> input->name >> input->price;
+
+        if (input->id == "0" && input->name == "0" && input->price == 0) {
+            flag = false;
+            delete input;
+        } else {
+            if (temp == l) {
+                l->next = input;
+            } else {
+                temp->next = input;
+            }
+            temp = input;
+            input = new bookNode;
+            input->next = NULL;
+        }
+    }
+}
 
 void display(bookList *l) {
     if (isEmpty(l)) {

homework2/test1.cpp

@@ -2,22 +2,11 @@
 #include "LinkList.h"
 using namespace std;
 
-void insert(bookList &l) {
-    bookNode *temp = l;
-    while (temp != NULL) {
-        cin >> (*temp).id >> (*temp).name >> (*temp).price;
-        if (!(((*temp).id == "0" && (*temp).name == "0" && (*temp).price == 0))) {
-            temp = (*temp).next = new bookNode;
-        } else {
-            temp = NULL;
-        }
-    }
-}
 
 int main() {
     bookList books = new bookNode;
     books->next = NULL;
-    insert(books);
+    create(books);
     display(&books);
     return 0;
 }