轴刻度为字符串

 

        # xax = self.plot_plt.getAxis('left')
        # x = (0,10,20,30,40,50,60,70,80,90,100,110,120)
        # strs = ['0','10','20','30','40','50','60','70','80','90','100','110','120']
        # ticks = [[i, j] for i, j in zip(x,strs)]
        # xax.setTicks([ticks])
        # plot_plt.plot(x, y1,pen=(2, 3),label="管地电位Von", symbol='o')#蓝色 管地电位