把二维数组数据从外部文本文件导入labview中，并实现对导入数据的按列提取，将提取后的几组数据组成新的几个二维数组显示出来，并显示其图形-The two-dimensional array of data from external text file into labview, and the realization of the import data extracted by the column, the extraction of several sets of data after the formation of the new show several two-dimensional array, and display its graphics