PCL（Point clouds library）处理的点云文件默认的是pcd格式，3D数据文件格式很多，这里仅仅提供.asc转.pcd的
程序原理也很简单，就是暴力的在每个.asc文件前添加几行.pcd的格式代码。
后面附加的是.bat批处理代码。
使用方法：新建两个.txt文件，分别保存下面的python代码和bat代码到两个文件中，命名为convert.py和runPy.bat后双击runPy.bat即可将当前根目录下的所有asc文件都转换成.pcd格式。
import time from sys import argv #script,filename = argv # filename = raw_input("please input filename: ") # print ("the input file name is:%r." %filename) def convert(filename): print ("the input file name is:%r." %filename) start = time.time() print("open the file.....") file = open(filename,"r+") count = 0 for line in file: count = count + 1 print("size is %d" %count) file.close() #output = open("out.pcd","w+") f_prefix = filename.split('.')[0] output_filename = '{prefix}.pcd'.format(prefix=f_prefix) output = open(output_filename,"w+") list = ['# .PCD v0.7 - Point Cloud Data file format\n','VERSION 0.7\n','FIELDS x y z intensity\n','SIZE 4 4 4 4\n','TYPE F F F F\n','COUNT 1 1 1 1\n', "VIEWPOINT 0 0 0 1 0 0 0\n"] output.writelines(list) output.write('WIDTH ') output.write(str(count)) output.write('\nHEIGHT ') output.write(str(1)) output.write('\nPOINTS ') output.write(str(count)) output.write('\nDATA ascii\n') file1 = open(filename,"r") all = file1.read() output.write(all) output.close() file1.close() end = time.time() print("run time is:",end-start) import os items = os.listdir(".") newlist = [] for names in items: if names.endswith(".asc"): newlist.append(names) for i in newlist: convert(i)下面的是runPy.bat
python convert.py