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#TUPLE########################### a = (1, 2, 3, 4, 5, "a") # tuple增删查(不支持改) # 增 b = (7, 8) c = a + b d = a.__add__(b) print(c) print(d) # 删 b = a[0:3] 阅读全文
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本文转自:https://blog.csdn.net/fashion2014/article/details/78826299 #1.查询平均成绩大于等于60分的同学的学生编号和学生姓名和平均成绩 select a.s_id as id,a.s_name as name,ROUND(AVG(b.s_ 阅读全文
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# -*-coding:utf8 -*- # from compiler.ast import flatten import os import traceback from PIL import Image import numpy as np from numpy import * from i 阅读全文