#（2）根據(jù)東部地區(qū)、中部地區(qū)和西部地區(qū)的滿意度數(shù)據(jù)，繪制并列條形圖、推疊條形圖和環(huán)形圖import pandas as pdimport matplotlib.pyplot as pltplt.rcParams['font.sans-serif'] = ['Heiti TC']plt.rcParams['axes.unicode_minus'] = Falsedf = pd.read_csv('exercise3_1.csv') plt.subplots(1, 3, figsize = (20, 5))  # 設(shè)置子圖和圖形大小# 圖（a）并列條形圖ax1 = plt.subplot(131) # 設(shè)置子圖1df.plot(kind = 'bar', stacked = False, width = 0.8, ax = ax1) # 繪制并列條形圖plt.xlabel('滿意度', size = 12)plt.ylabel('消費(fèi)者人數(shù)', size = 12)plt.xticks(range(5), df['滿意度'], rotation = 0)  # 添加x軸標(biāo)簽并設(shè)置旋轉(zhuǎn)角度plt.title('(a)并列條形圖', fontsize = 13, color = 'black') # 圖（b）堆疊條形圖ax2 = plt.subplot(132) # 設(shè)置子圖2df.plot(kind = 'bar', stacked = True, width = 0.5, ax = ax2) # 繪制堆疊條形圖plt.xlabel('滿意度', size = 12)plt.ylabel('消費(fèi)者人數(shù)', size = 12)plt.xticks(range(5), df['滿意度'], rotation = 0)  # 添加x軸標(biāo)簽并設(shè)置旋轉(zhuǎn)角度plt.title('(b)堆疊條形圖', fontsize = 13, color = 'black') # 圖（c）多樣本嵌套環(huán)形圖plt.subplot(133) # 設(shè)置子圖3colors = ['red', 'yellow', 'slateblue', 'lawngreen', 'magenta', 'green', 'orange', 'cyan', 'pink', 'gold'] # 設(shè)置顏色向量p1 = plt.pie(df['東部'], labels = df['滿意度'], autopct = '%1.2f%%',             radius = 1, pctdistance = 0.9, # 半徑為1，標(biāo)簽距圓心距離為0.9            colors = colors,            wedgeprops = dict(linewidth = 1.2, width = 0.3, edgecolor = 'w'))p2 = plt.pie(df['西部'], autopct = '%1.2f%%',             radius = 0.75, pctdistance = 0.85, # 半徑為0.75，標(biāo)簽距圓心距離為0.85            colors = colors,            wedgeprops = dict(linewidth = 1.2, width = 0.3, edgecolor = 'w'))p3 = plt.pie(df['中部'], autopct = '%1.2f%%',             radius = 0.5, pctdistance = 0.7, # 半徑為0.5，標(biāo)簽距圓心距離為0.7            colors = colors,            wedgeprops = dict(linewidth = 1.2, width = 0.3, edgecolor = 'w'))plt.title('(c)多樣本嵌套環(huán)形圖', fontsize = 13, color = 'black') # plt.tight_layout()