一、打印项目路径

import osPROJECT_ROOT = os.path.dirname(os.path.realpath(__file__))print "项目路径是",PROJECT_ROOT

二、打开文件并按行读取

open()

def testopenFile(fileName):    import os    PROJECT_ROOT = os.path.dirname(os.path.realpath(__file__))    fo = open(fileName)    print "项目路径是",PROJECT_ROOT    print "文件名是",fo.name    print "文件的行数是：",len(fo.readline())    for line in fo.readlines():        line = line.strip()        print "data is: %s" %(line)    fo.close()