摘要：d = {'a': 1, 'b': 2} print(list(d.values())[0]) print(next(iter(d.values()))) #适用于数据量多的时候会更快 阅读全文

摘要：恢复内容开始 来自https://blog.csdn.net/sinat_36190649/article/details/107941638，根据需求略做修改 import pymysql import pandas as pd import gc import time import threa 阅读全文