1、bar() —— 绘制柱状图
plt.bar(x,y,align="center",color="b",tick_label=["a","b","c","d","e"],alpha=0.6)plt.bar(x,y,align="center",c1、bar() —— 绘制柱状图
plt.bar(x,y,align="center",color="b",tick_label=["a","b","c","d","e"],alpha=0.6)plt.bar(x,y,align="center",c