fix

src/components/Canvas/tools/tools.ts

@@ -60,3 +60,21 @@ export const downImgListToZip = async (imagesParams,callback) => {
 		})
 		.catch((error) => console.error('下载失败:', error))
 }
+
+/** base64转二进制 */
+export const base64Tofile = (base64: string,name: string) => {
+	const arr = base64.split(',')
+	const mime = arr[0].match(/:(.*?);/)[1]
+	const bstr = atob(arr[1])
+	// 2. 转换为 Uint8Array
+	let n = bstr.length
+	const u8arr = new Uint8Array(n)
+	while (n--) {
+		u8arr[n] = bstr.charCodeAt(n)
+	}
+	// 3. 创建 Blob
+	const blob = new Blob([u8arr], { type: mime })
+	// 4. 创建 File 对象（可选）
+	const file = new File([blob], name, { type: mime })
+	return file
+}