python如何以表格形式打印输出的方法示例

#!/usr/bin/python# -*- coding: utf-8 -*-import timeimport json# 数据项timingInfo = [{  'url': 'https://aaa.bbb.net/ccc/article/details/11',  'duration(ms)': 121.12,  'start(ms)': 222,  'type': 'html',  'size(kb)': 22.01}, {  'url': '/nd-element-in-list-to-another-list-of-strings',  'duration(ms)': 121.22,  'start(ms)': 3332,  'type': 'css',  'size(kb)': 22.01}, {  'url': '/path2',  'duration(ms)': '121.12434234 (1212312.12 + 121212)',  'start(ms)': 3332,  'type': 'css',  'size(kb)': 22.01}, {  'url': '/nd-element-in-list-to-another-list-of-strings',  'duration(ms)': 121.42323423423,  'start(ms)': 3332,  'type': 'css',  'size(kb)': 22.01}, {  'url': 'path2',  'duration(ms)': '121.11 (111.11 + 20)',  'start(ms)': 3332,  'type': 'css',  'size(kb)': 22.01}]# 提取表头keyHeader = timingInfo[0].keys()# 存放每列的最大长度keyMaxLen = {}for item in timingInfo:  for i,h in enumerate(keyHeader):    # 计算每个属性对应的最大长度    maxLen = max(len(h), len(str(item[h])))    if keyMaxLen.get(h, None):      maxLen = max(maxLen, keyMaxLen[h])    keyMaxLen[h] = maxLenprint keyMaxLen#def printGroup(group):  for item in group:    print '/r'    for i,h in enumerate(keyHeader):      itemLen = keyMaxLen.get(h, str(h)) + 4      # 补空位并居中      s = str(item[h]).center(itemLen, '-' if item[h] == '-' else ' ')      icon = '|'      if item[h] == '-':        icon = '+'      s = (icon if i == 0 else '') + s[1:len(s)] + icon      print s,  print '/r'print '/n[timing info]'# 占位项tag = {}for i,h in enumerate(keyHeader):  tag[h] = '-'# 前后添上timingInfo.insert(0, tag)timingInfo.append(tag)# 第一行需要先单独打印出来printGroup([tag])# 再单独打印表头for i,h in enumerate(keyHeader):  # 留空位4  itemLen = keyMaxLen.get(h, str(h)) + 4  # 快捷居中并补空位 左对齐可使用 ljust之类  s = h.center(itemLen)  s = ('|' if i == 0 else '') + s[1:len(s)] + '|'  print s,# 打印后面的数据项，包括两条 --+--占位printGroup(timingInfo)

import prettytable as pt# tb = pt.PrettyTable( ["City name", "Area", "Population", "Annual Rainfall"])tb = pt.PrettyTable()tb.field_names = ["City name", "Area", "Population", "Annual Rainfall"]tb.add_row(["Adelaide",1295, 1158259, 600.5])tb.add_row(["Brifasdfae",5905, 1857594, 1146.4])tb.add_row(["Darwin", 112, 120900, 171423423423423424.7])tb.add_row(["Hobart", 1357, 205556,619.5])print(tb)