diff --git a/imageStorage.mjs b/imageStorage.mjs
new file mode 100644
index 0000000..72be7ae
--- /dev/null
+++ b/imageStorage.mjs
@@ -0,0 +1,66 @@
+const imageStorage = new Map();
+let imageCounter = 0;
+
+/**
+ * 保存图片到内存中
+ * @param {string} base64Data base64 数据
+ * @param {string} mediaType 媒体类型 ("image/jpeg")
+ * @returns {{ imageId: string, mediaType: string }} 返回图片信息
+ */
+export function storeImage(base64Data, mediaType) {
+    const randomPart = Math.floor(Math.random() * 10000);
+    const imageId = `image_${Date.now()}_${imageCounter++}_${randomPart}`;
+
+    imageStorage.set(imageId, { imageId, base64Data, mediaType });
+    // console.log(`Image stored with ID: ${imageId}, Media Type: ${mediaType}`);
+    // 打印存储的 base64
+    // console.log(`Base64 Data for Image ID ${imageId}: ${base64Data.substring(0, 100)}...`);
+
+    return { imageId, mediaType };
+}
+
+/**
+ * 获取图片数据
+ * @param {string} imageId 图片 ID
+ * @returns {object|null} base64 数据和媒体类型
+ */
+export function getImage(imageId) {
+    return imageStorage.get(imageId) || null;
+}
+
+/**
+ * 获取最后一个图片
+ * @returns {object|null} base64 数据和媒体类型
+ */
+export function getLastImage() {
+    const lastKey = Array.from(imageStorage.keys()).pop();
+    return lastKey ? imageStorage.get(lastKey) : null;
+}
+
+/**
+ * 删除图片数据
+ * @param {string} imageId 图片 ID
+ */
+export function removeImage(imageId) {
+    imageStorage.delete(imageId);
+}
+
+/**
+ * 清空所有存储的图片
+ */
+export function clearAllImages() {
+    imageStorage.clear();
+    imageCounter = 0;
+    // console.log("All images have been cleared from memory.");
+}
+
+/**
+ * 打印所有存储的图片
+ */
+export function printAllImages() {
+    console.log('Current images stored in memory:');
+    imageStorage.forEach((value, key) => {
+        console.log(`Image ID: ${key}, Media Type: ${value.mediaType}`);
+        console.log(`Base64 Data: ${value.base64Data.substring(0, 100)}...`);
+    });
+}