OSError: [WinError 123] 文件名、目录名或卷标语法不正确。: 'F:\\yolov5_7.0\\yolov5\\..F:\\yolov5_7.0\\datasets\\VOC'

报错OSError: [WinError 123] 文件名、目录名或卷标语法不正确。是因为路径写法不正确导致的。在原路径中，r 'C:\Users\A\Desktop\社保门禁\ date’中的冒号和引号需要删除。修改后的代码如下：

import os
date_list = ["0711", "0712", "0713", "0714", "0715", "0716", "0717", "0718", "0719", "0720",
             "0721", "0722", "0723", "0724", "0725", "0726", "0727", "0728", "0729", "0730",
             "0731", "0801", "0802", "0803", "0804", "0805", "0806", "0807", "0808", "0809", "0810"]
for date in date_list:
    oldpath = r'C:\\Users\\A\\Desktop\\社保门禁\\1_社保名单.xlsx'  # 需要复制的表
    newpath = r'C:\\Users\\A\\Desktop\\社保门禁\\' + date + '.xlsx'  # 需要复制的表
    folderpath = r'C:\\Users\\A\\Desktop\\社保门禁\\' + date  # 需要复制的表
    print(folderpath)

def mkdir(path):
    folder = os.path.exists(path)
    if not folder:
        os.makedirs(path)
        print("--- new folder... ---")
        print("--- OK ---")
    else:
        print("--- There is this folder! ---")

mkdir(folderpath)  # 创建文件夹。

这样修改后的代码就能正确运行了。