import matplotlib.pyplot as plt import pandas as pd import matplotlib.dates as mdates # 创建示例任务数据 data = { 'Task': ['Task 1', 'Task 2', 'Task 3', 'Task 4'], 'Start': ['2023-07-01', '2023-07-05', '2023-07-10', '2023-07-15'], 'End': ['2023-07-10', '2023-07-15', '2023-07-20', '2023-07-25'] } # 转换为DataFrame df = pd.DataFrame(data) df['Start'] = pd.to_datetime(df['Start']) df['End'] = pd.to_datetime(df['End']) # 绘制甘特图 fig, ax = plt.subplots(figsize=(10, 5)) # 将任务按结束时间排序，确保绘图时任务从上到下排列 df = df.sort_values(by='End') # 绘制每个任务的条形 for i, task in enumerate(df.itertuples()): ax.barh(task.Task, (task.End - task.Start).days, left=task.Start) # 设置x轴的日期格式 ax.xaxis.set_major_locator(mdates.DayLocator(interval=2)) ax.xaxis.set_major_formatter(mdates.DateFormatter('%Y-%m-%d')) # 设置图表标题和标签 plt.title('Gantt Chart') plt.xlabel('Date') plt.ylabel('Task') # 自动旋转日期标签 plt.xticks(rotation=45) plt.tight_layout() plt.show()