如果不想要每次顯示都寫.show() 可以加上%matplotlib inline ... plt.xlabel('x title', fontsize = 16) # 設定坐標軸標籤 ... plt.legend(loc='upper right') ... <看更多>

This is definitely an old question, but was frustrating me too and none of the other answers changed the legend title fontsize at all, ... ... <看更多>