numpy matplotlib 柱狀圖

from matplotlib import pyplot as plt x = [5,8,10] y = [12,16,6] x2 = [6,9,11] y2 = [6,15,7] plt.bar(x,y,align='center') plt.bar(x2,y2,color = 'g',align='center') plt.title('Bar graph') plt.ylabel('

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