python画柱状图 画折线图

# 画柱状图

plt.bar(x_labels, grid)

画折线图

"""

for i in range(len(grid)-1):

plt.plot([x_labels[i],x_labels[i+1]],[grid[i],grid[i]],color = 'b')

plt.plot([x_labels[i],x_labels[i]],[0,grid[i]],'--',color = 'b')

plt.plot([x_labels[i+1],x_labels[i+1]],[0,grid[i]],'--',color = 'b')

"""

公共部分

plt.xlabel('x_labels')

plt.ylabel('y_labels')

plt.title("Plotting in Python demonstration")

plt.show()