dahais4c

摘要： import numpy as np import matplotlib.pyplot as plt 设置x的范围：0到10，取500个点使曲线平滑 x = np.linspace(0, 10, 500) 计算三个函数值 y1 = x ** 2 # y1 = x² y2 = np.cos(2 * x 阅读全文

摘要： import requests from bs4 import BeautifulSoup import time import random import jieba from collections import Counter import re 更完善的请求头 headers = { 'Us 阅读全文