xlsxwriter使用介绍：
import xlsxwriter
# 创建一个工作簿并添加一个工作表
workbook = xlsxwriter.Workbook("demo.xlsx")
worksheet = workbook.add_worksheet()
# 设置列宽
worksheet.set_column("A:A", 20)
# 设置格式
bold = workbook.add_format({"bold": True})
# 设置单元格的值
worksheet.write("A1", "Hello")
# 带格式的单元格
worksheet.write("A2", "World")
# 写一些数字，用行列标识
worksheet.write(2, 0, 123)
worksheet.write(3, 0, 123.456, bold)
# 插入一张图片
worksheet.insert_image("B5", "C:/Users/Cheng/Desktop/1.png")
# 关闭文件流
workbook.close()合并Excel数据的方法：
import xlrd
import xlsxwriter
source_xls = ["D:/python/1.xlsx", "D:/python/2.xlsx"]
target_xls = "D:/python/3.xlsx"
# 读取数据
data = []
for i in source_xls:
wb = xlrd.open_workbook(i)
for sheet in wb.sheets():
for rownum in range(sheet.nrows):
data.append(sheet.row_values(rownum))
print(data)
# 写入数据
workbook = xlsxwriter.Workbook(target_xls)
worksheet = workbook.add_worksheet()
font = workbook.add_format({"font_size":14})
for i in range(len(data)):
for j in range(len(data[i])):
worksheet.write(i, j, data[i][j], font)
# 关闭文件流
workbook.close()将所有文件中的所有sheet中的数据读取出来组成一个二维数组，然后再写入新的Excel。
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