pandas库的常用操作，参考书籍《Pandas Cookbook》，内容干货，推荐下载！movie get_dtype_counts# output the number of columns with each specific data type:
movie. select_dtypes(include['int ]).head(# select only integer columns
movie. filter(1ike=' facebook').head()#1ike参数表示包含此
话不多说直接上代码：
var http = require('http')
//对URL 解析为对象
//1.导入模块 URl模块
var url = require('url')
var fs = require('fs')
var path = require('path')
var mime = require('./mime.js')
var qs = require('querystring')
http.createServer(function(req,res){
var
