段错误(segmentation fault)总结及调试本文参考以下文章整理而成，向作者致谢。http://www.diybl.com/course/6_system/linux/Linuxjs/200875/130421.htmlhttp://blog.chinau

os.pipe() 典型用法：#!/usr/bin/pythonimport os, sysprint "The child will write text to a pipe and "print "the parent will read the text written by child..."# file descriptors r, w for reading an