import cv2
#读取图片
img = cv2.imread("data/test.jpg", cv2.IMREAD_UNCHANGED)
报错信息:[ WARN:0@0.283] global D:\a\opencv-python\opencv-python\opencv\modules\imgcodecs\src\loadsave.cpp (239) cv::findDecoder imread_('data/test.jpg'): can't open/read file: check file path/integrity
检查了文件路径没有问题