Core Python上的第一个程序,书上的排版尤其是针对代码这块最令我不爽,看来看去,这个缩进很明显的错误~还是要自己改改,调调才可,尽信书不如无书,也好~!
#!/usr/bin/env python
#'makeTextFile.py -- create text file'
import os
ls= os.linesep
#get filename
while True:
fname = raw_input('input file name:')
if os.path.exists(fname):
print "Error: '%s' already exists" % fname
break
else:
#get file content
all = []
print "\nEnter lines ('.' by itself to quit).\n"
#loop until user terminates input
while True:
entry = raw_input('>')
if entry == '.':
break
else:
all.append(entry)
#write lines to file with proper line-ending
print 'file name:%s' % fname
fobj = open(fname, 'w')
fobj.writelines(['%s%s' % (x, ls) for x in all])
fobj.close()
print 'Done!'
print 'Exit~!'
#!/usr/bin/env python
'readTextFile.py -- read text file'
#get filename
fname = raw_input('Enter filename:')
print
#attemp to open file for reading
try:
fobj = open(fname, 'r')
except IOError, e:
print "***file open failed:",e
else:
#print file content
for eachline in fobj:
print eachline,
fobj.close()
一个简单的文件读写程序~~