Python常用功能函数汇总 1.按行写字符串到文件中 import sys, os, time, json def saveContext(filename,*name): format = '^' context = name[0] for i in name[1:]: context = context + format + str(i) context = str(context).replace('(','(').replace(')',')').replace(',',',').re…
今天有空,把C#常用的功能总结一下,希望对您有用.(适用于.NET Framework 4.5) 1. 把类转换为字符串(序列化为XML字符串,支持xml的namespace) using System.IO; using System.Text; using System.Xml; using System.Xml.Serialization; public static string Serialize<T>(T t, string nameSpacePri, string nameSpa…
特殊字符转义:将<, >, &, “进行转义 function escape(str){ return str.replace(/[<>"&]/g,function(match){ switch(match){ case "<": return "<"; case ">": return ">"; case "&": retu…
select actor_id,@curr_cnt:=cnt as cnt , ,@rank) as rank, @prev_cnt:=@curr_cnt as dummy from( select actor_id,count(*) as cnt from film_actor group by actor_id ORDER BY cnt desc ) as der, (,, ) as t -- 实际上相当于赋值操作 -- 排名,考虑并列情况 AS rownum,IF(@total = cnt…
常用功能的实现 获取当前脚本所在目录 current_script_dir = fileparts(mfilename('fullpath')); % 结尾不带'/' 常用函数的说明 bsxfun matlab函数 bsxfun浅谈 bsxfun是一个matlab自版本R2007a来就提供的一个函数,作用是"applies an element-by-element binary operation to arrays a and b, with singleton expansion enab…