python遍历一个文件夹中的图片，每张图片与之前的图片一一比较，如果相同则将其删除

你可以使用 Python 的 `os` 和 `PIL` 库来实现这个功能，具体步骤如下：

1. 导入需要的库

import os
from PIL import Image

2. 定义一个函数来比较两张图片是否相同

def compare_images(image1_path, image2_path):
    image1 = Image.open(image1_path)
    image2 = Image.open(image2_path)
    return image1 == image2

3. 获取文件夹中所有的图片路径

folder_path = "/path/to/folder"
image_paths = [os.path.join(folder_path, filename) for filename in os.listdir(folder_path) if filename.endswith(".jpg") or filename.endswith(".png")]

4. 遍历所有的图片路径，依次和前面的图片比较

for i in range(len(image_paths)):
    current_image_path = image_paths[i]
    for j in range(i):
        previous_image_path = image_paths[j]
        if compare_images(current_image_path, previous_image_path):
            os.remove(current_image_path)
            break

5. 完整代码如下：

import os
from PIL import Image

def compare_images(image1_path, image2_path):
    image1 = Image.open(image1_path)
    image2 = Image.open(image2_path)
    return image1 == image2

folder_path = "/path/to/folder"
image_paths = [os.path.join(folder_path, filename) for filename in os.listdir(folder_path) if filename.endswith(".jpg") or filename.endswith(".png")]

for i in range(len(image_paths)):
    current_image_path = image_paths[i]
    for j in range(i):
        previous_image_path = image_paths[j]
        if compare_images(current_image_path, previous_image_path):
            os.remove(current_image_path)
            break