{
  "1":["小花",99,100,98.5],
  "2":["小王",90,30.5,95],
  "3":["小明",67.5,49.6,88]
}

import json, xlwt


def read_score(jsonfile):
  with open(jsonfile, encoding='utf-8') as f: # 将json文件转化为字典
    score_all = json.load(f)

  book = xlwt.Workbook() # 创建excel文件
  sheet = book.add_sheet('sheet1') # 创建一个表
  title = ['序号', '姓名', '语文', '数学', '英语', '总分', '平均分']
  for col in range(len(title)): # 存入第一行标题
    sheet.write(0, col, title[col])
  row = 1 # 定义行
  for k in score_all:
    data = score_all[k] # data保存姓名和分数的list
    data.append(sum(data[1:4])) # 倒数第二列加入总分
    data.append(sum(data[1:4]) / 3.0) # 最后一列加入平均分
    data.insert(0, k) # 第一列加入序号
    for index in range(len(data)): # 依次写入每一行
      sheet.write(row, index, data[index])
    row += 1
  book.save('score.xls')


read_score('score.json')