python3 折线图上如何显示特殊数据答:'2017-09', '2017-10', '2017-11', '2017-12']体重 y1 = [86, 85, 84, 80, 75, 70, 70, 74, 78, 70, 74, 80]设置画布大小 plt.figure(figsize=(16, 4))标题 plt.title("my weight")数据 plt.plot(x1, y1, label='weight changes', linewidth=3, color='r', marker='...