Add a label= to each of your plot() calls, and then call legend(loc='upper left') . Consider this sample (tested with Python 3.8.0): ... <看更多>

Unfortunately, Matplotlib does not make this easy: via the standard legend interface, it is only possible to create a single legend for the entire plot. If you ... ... <看更多>

We previously saw how to create a simple legend; here we'll take a look at customizing the placement and aesthetics of the legend in Matplotlib. The simplest ... ... <看更多>

... <看更多>

Like many of my peers, I use matplotlib to make plots for science ... pyplot.plot(..., lorder=2, label="second") # appears second in legend ... ... <看更多>