您可以使用该range()函数为您执行步进（本例中为64块），以便您的裁剪仅涉及简单的表达式：
import os
from PIL import Image
savedir = "E:/Cropped/OK"
filename = "E:/Cropped/dog.jpg"
img = Image.open(filename)
width, height = img.size
start_pos = start_x, start_y = (0, 0)
cropped_image_size = w, h = (64, 64)
frame_num = 1
for col_i in range(0, width, w):
for row_i in range(0, height, h):
crop = img.crop((col_i, row_i, col_i + w, row_i + h))
save_to= os.path.join(savedir, "counter_{:03}.jpg")
crop.save(save_to.format(frame_num))
frame_num += 1
除此之外，您的代码可以按预期工作。
602392714
清零编程群