我需要帮助将结果绘制成2个条形图（不同颜色）。结果图形需要具有网格线。
如何输出漂亮的情节？
数据如下：
x轴是从2到50的速度，增量是2。
A = [2.2214523, 1.81357174, 1.61390754, 1.47970432, 1.29658232, 1.26972206, 1.16870602, 1.17688473, 1.30224695, 1.23878984, 1.18680971, 1.26357444, 1.14138904, 0.95115584, 1.16134491, 1.021687, 0.98920929, 1.04342079, 0.99826255, 0.8655728, 0.91652594, 0.85538917, 0.78884521, 0.91927867, 0.86419587]
B = [187.579709, 25.312399, 11.3572375, 9.3078819, 8.37157321, 7.66729673, 7.36497776, 6.96170053, 6.69527653, 6.77668306, 6.19491326, 6.01744432, 5.61383228, 5.59616954, 5.26652168, 5.26946343, 5.19543014, 5.11049461, 5.05088231, 4.917285, 4.9581181, 4.78929521, 4.772158, 4.7373291, 4.81629734]