写了一个最简单的Flask api 服务，给我正确的时候返回一个文本字符串，失败的时候返回一个json？？？ 🙃连返回的格式统一都做不到，更别说debug一些难搞的bug了 
@app.route(‘/ocr’, methods=[‘POST’]) 
def ocr_service(): 
data = request.get_json() 
if not data or ‘image_path’ not in data: 
return jsonify({‘error’: ‘Missing image_path in request body’}), 400 
image_path = data['image_path']

if not os.path.exists(image_path):
    return jsonify({'error': f'Image not found ...