python中的文件

1、打印项目路径

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

2、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()