graph

transaction.c

@@ -31,7 +31,7 @@ void Deposit(int id)
             g_astAccounts[FindAccount(id)].balance+=amount;
             printf("success");
             QueryBalance(id);
-            EnqueueLog(id, "Deposit", amount, g_astAccounts[FindAccount(id)].balance);
+            EnqueueLog(id, "Deposit", amount, g_astAccounts[FindAccount(id)].balance, -1);
             SaveData();
             break;
         }
@@ -69,7 +69,7 @@ void Withdraw(int id)
         if (g_astAccounts[FindAccount(id)].password==temp_password) {
             if (g_astAccounts[FindAccount(id)].balance>amount) {
                 g_astAccounts[FindAccount(id)].balance-=amount;
-                EnqueueLog(id, "Withdraw", amount, g_astAccounts[FindAccount(id)].balance);
+                EnqueueLog(id, "Withdraw", amount, g_astAccounts[FindAccount(id)].balance, -1);
                 printf("success");
                 QueryBalance(id);
                 SaveData();
@@ -100,3 +100,58 @@ void QueryBalance(int id)
     printf("你现在还有%f块\n",g_astAccounts[FindAccount(id)].balance);
     return;
 }
+
+void Transfer(int from_id)
+{
+    int to_id;
+    int amount;
+    int temp_password;
+    int from_idx = FindAccount(from_id);
+    int to_idx;
+
+    printf("请输入目标账户ID: ");
+    scanf("%d", &to_id);
+
+    to_idx = FindAccount(to_id);
+    if (to_idx == -1) {
+        printf("目标账户不存在!\n");
+        return;
+    }
+    if (from_id == to_id) {
+        printf("不能给自己转账!\n");
+        return;
+    }
+
+    while (1) {
+        printf("请输入转账金额: ");
+        scanf("%d", &amount);
+        if (amount > 0) break;
+        printf("金额必须为正数!\n");
+    }
+
+    printf("请输入密码验证身份: ");
+    while (1) {
+        scanf("%d", &temp_password);
+        if (g_astAccounts[from_idx].password == temp_password) {
+            if (g_astAccounts[from_idx].balance >= amount) {
+                g_astAccounts[from_idx].balance -= amount;
+                g_astAccounts[to_idx].balance += amount;
+                EnqueueLog(from_id, "Transfer", amount,
+                           g_astAccounts[from_idx].balance, to_id);
+                EnqueueLog(to_id, "Receive", amount,
+                           g_astAccounts[to_idx].balance, from_id);
+                printf("转账成功! %d -> %d, 金额: %d\n",
+                       from_id, to_id, amount);
+                printf("当前余额: %.2f\n", g_astAccounts[from_idx].balance);
+                SaveData();
+                return;
+            } else {
+                printf("余额不足! 当前余额: %.2f\n",
+                       g_astAccounts[from_idx].balance);
+                return;
+            }
+        } else {
+            printf("密码错误，请重新输入: ");
+        }
+    }
+}