1. In Python, you can use the Matplotlib library to realize the Y-axis bar graph, and the three Y-axis bars are on the same abscissa and the same X-axis.

2. In Python, you can draw a bar graph with multiple Y axes on the same abscissa by using the ` bar ()` function of Matplotlib library, and adjust the alignment and size of the bar graph by setting different parameters. At the same time, you can use' set_xticks ()' and' set _ x ticks ()' to set scales and labels,' set _ x ticks ()' and' set'.