python-excel操作
应用xlsxwriter模块,导入测试数据到excel进行绘图并导出
1. 引用:
import xlsxwriter
2. 获取workbook:
workbook = xlsxwriter.Workbook(excel_path)
3. 创建worksheet:
worksheet1 = workbook.add_worksheet("sheet1")
4. 写入行:
headings = ['a', 'b', 'c'] worksheet1.write_row('A1', headings) #从A1单元格开始
5. 写入列:
data1= ['1','2','3'] worksheet1.write_column('A2', data1) #从A2单元格开始
6. 创建折线图:
chart = workbook.add_chart({'type': 'line'})
7. 为折线图指定数据:
values = '=Request!$A$1:$A$' + str(len(data1)) #指定数据区域,此处为从A1开始到data1长度 chart.add_series({'name': 'value', 'values': values}) #指定折线的名称和数据
8. 指定折线图名称:
chart.set_title({'name': 'Request Sequence'})
9. 画出折线图:
worksheet1.insert_chart('C1', chart) #从C1单元格开始画图
10. 关闭workbook:
workbook.close()
11. 散点图:
chart = workbook.add_chart({'type': 'scatter'}) # Set data scope data_length = len(data1) + 1 values = '=sheet1!$B$2:$B$' + str(data_length) categories = '=sheet1!$A$2:$A$' + str(data_length) # Add series chart.add_series({'name': 'data1', 'values': values, 'categories': categories}) # Set chart title and axis labels chart.set_title({'name': 'scatter_chart'}) chart.set_x_axis({'name': 'x'}) chart.set_y_axis({'name': 'y'}) # Insert chart worksheet1.insert_chart('G1', chart, {'x_scale': 2, 'y_scale': 2}) #x_scale和y_scale用来缩放图形,这里为2倍
12. 使用win32com.client中的Dispatch导出图:
from win32com.client import Dispatch def export_chart(workbook, worksheet, image_path): image_type = 'jpg' excel = Dispatch("Excel.Application") excel.Visible = True wb = excel.Workbooks.Open(workbook) sheet = wb.Worksheets(worksheet) for chart in sheet.ChartObjects(): chart.Chart.Export(image_path, image_type) wb.Close(False) #如果上面有错误,excel就会保持打开状态,不知道如何解决。 excel.Quit()
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