import pygalline_chart = pygal.Line()line_chart.title = '各科成绩趋势图'line_chart.x_labels = map(str, range(1, 6))line_chart.add('数学', [66, 58, 70, 72, 76, 78])line_chart.add('语文', [88, 89, 90, 88, 86, 82])line_chart.add('英语', [98, 99, 99, 96, 100, 98])line_chart.render()数据分析可以替换