行走天涯的豆沙包的博客

随机游走（rand walk）：醉汉游走# -*- coding: utf-8 -*-"""Spyder EditorThis is a temporary script file."""import random import mathdef random_walk(n): x=0 y=0 for i in range(n): ste...

pandas库的应用主要用于处理一些数据以读取csv文件为例from matplotlib import pyplot as pltimport pandas as pdx=pd.read_csv('/Users/蔡洪浩/Desktop/countries.csv')#y=x[10]y=x.country=='China'#print(y) bool值类型#z=x[y] 如果y是...

小项目：数据可视化Matplotlib库前奏：import matplotlib.pyplot as pltx=[1,2,3]x1=[2,3,4]y=[1,2,3,4,5]z=['com a','com b','com c']z1=['com A','com B','com C']plt.bar(z,x,label='bar_1',color='red') #柱状图plt.b...