帮我将以下代码中的环状图改为饼状图tem = roundri 100 tot pltrcParamsfontsans-serif = SimHei pltrcParamsaxesunicode_minus = False fig ax = pltsubplotsfigsize=6 6 wedgeprops = width 03 edgec

tem = round(ri * 100 / tot) plt.rcParams['font.sans-serif'] = ['SimHei'] plt.rcParams['axes.unicode_minus'] = False fig, ax = plt.subplots(figsize=(6, 6)) wedgeprops = {'edgecolor': 'black', 'linewidth': 3} ax.pie([tem, 100 - tem], wedgeprops=wedgeprops, startangle=90, colors=['#5DADE2', '#515A5A']) plt.title('答题正确率', fontsize=24, loc='center') plt.text(0, 0, f"{tem}%", ha='center', va='center', fontsize=42) # plt.show() canvas = FigureCanvasTkAgg(fig, master=ret) canvas.draw() canvas.get_tk_widget().pack(