diff --git a/src/utils/tools.ts b/src/utils/tools.ts
index 738e4b2..e55814a 100644
--- a/src/utils/tools.ts
+++ b/src/utils/tools.ts
@@ -197,15 +197,17 @@ export function CountDown(time: number) {
 /**
  * 字节转换为可读格式
  * @param {number} bytes - 字节数
- * @param {number} decimals - 保留小数位数，默认2位
+ * @param {number} options - 选项对象
+ * @param {number} options.decimals - 保留小数位数，默认2位
+ * @param {boolean} options.unitBig - 是否使用大写单位，默认false
  * @returns {string} 格式化后的字符串
  */
-export function FormatBytes(bytes, decimals = 2) {
-	if (bytes === 0) return '0 B';
+export function FormatBytes(bytes, options: { decimals?: number, unitBig?: boolean } = {}) {
 	if (!bytes || isNaN(bytes)) return '0 B';
+	const { decimals = 2, unitBig = false } = options;
 	const k = 1024;
-	const sizes = ['B', 'KB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB'];
+	const sizes = unitBig ? ['B', 'KB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB'] : ['b', 'kb', 'mb', 'gb', 'tb', 'pb', 'eb', 'zb', 'yb'];
 	const i = Math.floor(Math.log(bytes) / Math.log(k));
 	const value = bytes / Math.pow(k, i);
 	return `${Number(value.toFixed(decimals))} ${sizes[i]}`;
-}
+}
\ No newline at end of file
diff --git a/src/views/shoppingCart/sc-list.vue b/src/views/shoppingCart/sc-list.vue
index 9717385..c5c8332 100644
--- a/src/views/shoppingCart/sc-list.vue
+++ b/src/views/shoppingCart/sc-list.vue
@@ -84,7 +84,7 @@
 	})
 	const allTotalSize = computed(() => {
 		const total = list.value.reduce((pre, cur) => pre + cur.fileSize, 0)
-		const str = FormatBytes(total)
+		const str = FormatBytes(total, { unitBig: true })
 		return {
 			size: str.split(' ')[0],
 			unit: str.split(' ')[1]