This a C# general library witch implements the Xbee API dataframe for newbies.-This is a C# general library witch implements the Xbee API dataframe for newbies.

利用R语言合并指定目录下的所有CSV文件，逐个导入csv为dataframe数据类型，然后合并dataframe.合并的方式是横向合并，也就是根据第1列（可以选择依据那几列）将所有csv拼接起来，便于后续的数据分析-use R to merge csv files. all csv files will be merged by the first column to a large csv file.

读取通达信本地日线数据，返回dataframe结构(Read by local daily return data, dataframe structure)